Schneider Electric 890 USE 155 Uživatelská příručka

31000400 04984-A120 Compact PLC’s User Guide890 USE 108 00 Version 4.0

10 890 USE 108 00 August 2001

Communication Capabiliites100890 USE 108 00 August 2001

890 USE 108 00 August 2001 1014Hardware PlanningAt a GlanceIntroduction Use the information in this chapter to correctly plan your compact system hard

Hardware Planning102890 USE 108 00 August 2001DIN Carrier RailsOverview of DIN Carrier RailsCompact Controllers and their associated A120 I/O modules

Hardware Planning890 USE 108 00 August 2001 103Space Requirements for Mounting DIN RailA DIN rail mounting surface must be at least 225 mm (8.86 in) l

Hardware Planning104890 USE 108 00 August 2001Choosing DTA BackplanesOverview of DTA BackplanesA Compact Controller and its associated A120 I/O module

Hardware Planning890 USE 108 00 August 2001 105Two-Slot and Five-Slot Secondary BackplanesUp to three secondary backplanes may be used in a drop (a dr

Hardware Planning106890 USE 108 00 August 2001Planning a Linear Drop LayoutOverview of Linear Drop LayoutsA DTA 200 primary backplane and up to three

Hardware Planning890 USE 108 00 August 2001 107This shows the legal configurations for a linear drop layout DTA 200DTA 200DTA 200DTA 200DTA 200DTA 200

Hardware Planning108890 USE 108 00 August 2001Planning a Stacked Drop Layout Overview of Stacked Drop LayoutBackplanes in a drop may also be stacked o

Hardware Planning890 USE 108 00 August 2001 109CASE 1: A single DTA 200 backplane over two DTA 201 backplanes; the BXT 201 runs from rack 1 to rack 3.

890 USE 108 00 August 2001 111Compact HardwareAt a GlanceIntroduction The information in this chapter introduces the Compact Controller and describes

Hardware Planning110890 USE 108 00 August 2001Variations on the Stacked Drop LayoutsYou can vary the two stack topologies to accommodate a one-over-on

Hardware Planning890 USE 108 00 August 2001 111Using a BXT 203 Cable (30-Pin Female-to-Male Connectors)A DTA 200 primary backplane and up to two secon

Hardware Planning112890 USE 108 00 August 2001Case 3: A DTA 200 backplane over one DTA 201 backplane, in this case, the traffic cop defines modules in

890 USE 108 00 August 2001 1135Hardware InstallationAt a GlanceIntroduction The following information describes how to install your Compact hardware.W

Hardware Installation114890 USE 108 00 August 2001Installing DTA BackplanesProcedure for Installing DTA BackplanesThese are the DTA installation steps

Hardware Installation890 USE 108 00 August 2001 1153 Push up the securing clips on the bottom of the backplane to clamp the unit onto the DIN rail.Ref

Hardware Installation116890 USE 108 00 August 2001Interlocking Adjacent BackplanesOverview of Interlocking BackplanesThe DTA 200 primary backplane mus

Hardware Installation890 USE 108 00 August 2001 1174 Loosen the screws that secure the ground strap on the secondary backplane and the 0 V system refe

Hardware Installation118890 USE 108 00 August 2001WARNINGConnector warningIf you use a DTA 202 secondary backplane which does not have a 30-pin bus co

Hardware Installation890 USE 108 00 August 2001 119Installing a BXT 201 Cable in a Stacked Drop LayoutUsing a BXT201 Cable in a Stacked DropIf you are

Hardware12890 USE 108 00 August 2001The 984 Family of PLCsCommon 984 Controller ArchitectureModicon’s Compact Programmable Controllers bring the high

Hardware Installation120890 USE 108 00 August 2001Note: The BXT 201 cable connectors are polarized and must be connected properly to the backplanes-th

Hardware Installation890 USE 108 00 August 2001 121Installing a BXT 203 Cable in a Stacked Drop Layout Overview of the BXT 203 CableIf you are install

Hardware Installation122890 USE 108 00 August 2001Note: The BXT 203 cable can be installed only one way, because it consists of one 30-pin female conn

Hardware Installation890 USE 108 00 August 2001 123Inserting Modules in the Backplane(s)Module Placement in BackplanesThe Compact Controllers and the

Hardware Installation124890 USE 108 00 August 2001If all of the modules are installed in the backplane and the module connections are appropriately wi

Hardware Installation890 USE 108 00 August 2001 125Compact Installation Dimension DrawingsFront and Side Dimensions used to Install the RackA front an

Hardware Installation126890 USE 108 00 August 2001This shows the side view of the Compact rack installation. 16 mm (0.6 in)Room forMounting/Dismountin

Hardware Installation890 USE 108 00 August 2001 127System Power RequirementsExternal Power SuppliesThe Compact Controllers and some of the A120 I/O mo

Hardware Installation128890 USE 108 00 August 2001Power Requirements for the A120 I/O ModulesSome A120 I/O modules require a separate external AC or D

Hardware Installation890 USE 108 00 August 2001 129AS-BDEP-217 (24Vdc) <25AS-BDEP-216 (24 Vdc) <25 <150AS-BDEP-218 (115 Vac) <15AS-BDEP-22

Hardware890 USE 108 00 August 2001 13The following figure shows the 984 PLC architecture. Programming The Compact Controllers may be configured, I/O M

Hardware Installation130890 USE 108 00 August 2001Daisy Chaining Groups of Similar I/O ModulesYou can daisy chain groups of similar modules within a d

Hardware Installation890 USE 108 00 August 2001 131Distributing Field Power to A120 I/O Field Power Distributed to A120 ModulesThe following figure is

Hardware Installation132890 USE 108 00 August 2001The following figure is an example of the recommended field wiring and fusing scheme for some ac out

890 USE 108 00 August 2001 1336Wiring and CablingAt a GlanceIntroduction The following information describes the wiring and cabling of your Compact sy

Wiring and Cabling134890 USE 108 00 August 2001System Bonding and GroundingOverview As part of your installation procedure, provide the Compact system

Wiring and Cabling890 USE 108 00 August 2001 135Functional GroundingFunctional grounding diverts and neutralizes extraneous electrical signals that in

Wiring and Cabling136890 USE 108 00 August 2001System Reference GroundingSystem Grounding OverviewThe masked copper grid on the primary DTA 200 housin

Wiring and Cabling890 USE 108 00 August 2001 137I/O Module to DIN Rail Grounding RequirementsUnder certain conditions (painted, coated, or corrosive D

Wiring and Cabling138890 USE 108 00 August 2001Guarding Against EMI/RFIOverview of EMI/RFI ProtectionAs part of your installation procedure, take care

Wiring and Cabling890 USE 108 00 August 2001 139Grounding and Power Distribution Overview

Hardware14890 USE 108 00 August 2001Special Features of the CompactsCPU Memory ChoicesThe Compact Controllers deliver 984 architectural consistency an

Wiring and Cabling140890 USE 108 00 August 2001Grounding and Power Distribution ExampleThe two illustrations that follow provide an example of a Compa

Wiring and Cabling890 USE 108 00 August 2001 141The following figure comprises part 2 of a Compact system layout for grounding and power distribution.

Wiring and Cabling142890 USE 108 00 August 2001

890 USE 108 00 August 2001 143AppendicesAt a GlanceIntroduction The appendix presents information on Technical References. What’s in this Appendix?The

Appendices144890 USE 108 00 August 2001

890 USE 108 00 August 2001 145AGetting StartedAt a GlanceIntroduction Certain Compact PLC models are supported by Modsoft panel software while other C

Getting Started146890 USE 108 00 August 2001Using Your Compact with ModsoftOverview of Using Compact with ModsoftThe purpose of this section is to hel

Getting Started890 USE 108 00 August 2001 147Start-Up Procedure Using Modsoft with Your Compact Stage 2This stage of the procedure includes the config

Getting Started148890 USE 108 00 August 2001Start-Up Procedure Using Modsoft with Your Compact Stage 3This stage of the procedure ends with forcing on

Getting Started890 USE 108 00 August 2001 149Start-Up Procedure Using Modsoft with Your Compact Stage 4: Simulating Turning on the InputUse this proce

Hardware890 USE 108 00 August 2001 15The E984-275 CPU with two Modbus communication ports and a Modbus Plus network interface, 1 Meg FLASH RAM based s

Getting Started150890 USE 108 00 August 2001Using Your Compact with ConceptOverview of Using Compact with ConceptThis section provides a brief descrip

Getting Started890 USE 108 00 August 2001 151Creating a Project Stage 1Use the following the procedure to creating a project. in Concept. Note that t

Getting Started152890 USE 108 00 August 2001Creating a Project Stage 2Perform the following steps as Stage 2 of creating a project.1 Select an I/O mod

Getting Started890 USE 108 00 August 2001 153Creating a Project Stage 3Perform the following steps as Stage 3 of creating a project.1 Open the FFBs fr

Getting Started154890 USE 108 00 August 2001Creating a Project Stage 4 Using the Concept PLC SimulatorStage 4 of creating a project shows how use the

Getting Started890 USE 108 00 August 2001 155Building the ConnectionBelow is the procedure for building the connection.CAUTIONDisconnect Concept and B

Getting Started156890 USE 108 00 August 2001Downloading the User programThe following is the procedure for downloading the user program.Step Action Re

Getting Started890 USE 108 00 August 2001 157Forcing an Input The following is the procedure for forcing an input.Step Action Result1 Use the menu com

Getting Started158890 USE 108 00 August 2001

890 USE 108 00 August 2001 159BSystem SpecificationsCompact SpecificationsCompact PLC System SpecificationsThe following information describes the tec

Hardware16890 USE 108 00 August 2001Memory User memory is the amount of memory available for your user logic program (one word comprises 16 bits). Sta

System Specifications160890 USE 108 00 August 2001The following table is table 1 of the technical specifications.Models PC-A984-120With one Modbus com

System Specifications890 USE 108 00 August 2001 161The following table is table 2 of the technical specifications.State RAM A984 & E984-24x/251/2

System Specifications162890 USE 108 00 August 2001The following table is table 3 of the technical specifications.Logic Solve Time0984/A984 PICs 4.25 m

System Specifications890 USE 108 00 August 2001 163Table 4 of the technical specifications describes physical and agency specifications.Weight PC-A984

System Specifications164890 USE 108 00 August 2001Table 5 describes specifications related to programming the Compact PLCs.Programming Language Standa

System Specifications890 USE 108 00 August 2001 165Environmental System SpecificationsAll Compact 984 PLCs and all power supplies are designed to the

System Specifications166890 USE 108 00 August 2001Note: The E984-258/258C/285/285C PLCs and the related extended temperature I/O modules (ADU254/254C,

890 USE 108 00 August 2001 167CCE RequirementsRequirements for CE ComplianceOverview The Compact 984 component you have determines to which informatio

CE Requirements168890 USE 108 00 August 2001Installation Requirements for Certain Compact Family ProductsThe following information describes the insta

CE Requirements890 USE 108 00 August 2001 169The following figure shows how the configuration would look. To BuildingGround2 Conductor Cablewith Braid

Hardware890 USE 108 00 August 2001 17This is the example table.For this example, you should set the IEC memory size to 97. The figures for other PLC m

CE Requirements170890 USE 108 00 August 2001This table shows the Parts List for Callouts for Above and Below.Callout Vendor (or equivalent)Part Number

CE Requirements890 USE 108 00 August 2001 171The following figure shows how the configuration looks using the parts in this table. 1DIN Rail2453Flat B

CE Requirements172890 USE 108 00 August 2001Installation Requirements for Certain Compact Family ProductsFollow these requirements for installations t

CE Requirements890 USE 108 00 August 2001 173The following figure shows the capacitive discharge terminal. NDTA 200DTA 201/2022.5 qmmC1Z2Z3≥ 2.5 qmm≥

CE Requirements174890 USE 108 00 August 2001The following figure also shows the capacitive discharge terminal. Note: Earthing system of the 0V on the

CE Requirements890 USE 108 00 August 2001 175For earthing systems of the shielded cable lines, the following table provides an overview of recommended

CE Requirements176890 USE 108 00 August 2001

890 USE 108 00 August 2001 177DA120 Power SuppliesAt a GlanceIntroduction The following information describes the two optional power supplies that are

A120 Power Supplies178890 USE 108 00 August 2001P120-000 Power SupplyOverview of the P120-000Power SupplyThe P120-000 is an isolated power supply for

A120 Power Supplies890 USE 108 00 August 2001 179The P120 module is designed to be inserted in any available I/O slot in the DTA 200 backplane just li

Hardware18890 USE 108 00 August 2001System Capacity The system capacity for the PLCs are described below.This is the system capacity table.PLC Total U

A120 Power Supplies180890 USE 108 00 August 2001P120-000 SpecificationsSpecifications for the P120-000 Power SupplyThe P120-000 Power Supply technical

A120 Power Supplies890 USE 108 00 August 2001 181P120-125 Power SupplyAbout P120-125 Power SupplyThe P120-125 is an isolated power supply for a Compac

A120 Power Supplies182890 USE 108 00 August 2001Overload and Overvoltage ProtectionThe P120-125 has internal overvoltage protection, preventing the ou

A120 Power Supplies890 USE 108 00 August 2001 183P120-125 SpecificationsP120-125Power Supply SpecificationsThe following table lists the technical spe

A120 Power Supplies184890 USE 108 00 August 2001P120-250(C) Power Supply ModuleAbout theP120-250Power SupplyThe P120-250 is an AC input isolated power

A120 Power Supplies890 USE 108 00 August 2001 185Overload and Overvoltage ProtectionShould the supply lose regulation it has an internal over voltage

A120 Power Supplies186890 USE 108 00 August 2001The P120-250(C) Specifications Technical SpecificationsThe following table details the technical speci

A120 Power Supplies890 USE 108 00 August 2001 187PRTU252(C) and PRTU258(C) Power Supply ModulesAbout the Power SuppliesThese modules are AC input isol

A120 Power Supplies188890 USE 108 00 August 2001This figure shows the front view of the PRTU258(C) power supply. 1819202122RTU2581819202122+-+-30 to 7

A120 Power Supplies890 USE 108 00 August 2001 189Overload and Overvoltage ProtectionShould the supplies lose regulation they have internal over voltag

Hardware890 USE 108 00 August 2001 19Space Allocation Formula for Data TypesThe maximum of each data type expressed in System Capacity, p. 18, or the

A120 Power Supplies190890 USE 108 00 August 2001PRTU252(C) and PRTU258(C) Specifications Technical SpecificationsThe following table details the techn

A120 Power Supplies890 USE 108 00 August 2001 191Agency ApprovalsUL508, UL1210, UL1950, CSA 950, TUV 950, and CE requirementsEnvironmental RatingCondu

A120 Power Supplies192890 USE 108 00 August 2001

890 USE 108 00 August 2001 193ECompact AccessoriesAt a GlanceIntroduction This appendix describes the Compact accessories.What’s in this Chapter?This

Compact Accessories194890 USE 108 00 August 2001PLC AccessoriesListing of PLC AccessoriesThe information in the following table describes the PLC Acce

Compact Accessories890 USE 108 00 August 2001 195Cables (A984, E984-24x/25x)RS-232C cable with 25-pin IBM-XT panel connectionAS-W951-012RS-232C cable

Compact Accessories196890 USE 108 00 August 2001A120 I/O ModulesA120 I/O Modules The following information describes the A120 I/O modules that are ava

Compact Accessories890 USE 108 00 August 2001 197Discrete Combination Modules4 point 120 Vac in / 4 point 120 Vac out AS-BDAP-211*8 point 24 Vdc in /

Compact Accessories198890 USE 108 00 August 2001Communication InterfacesInterbus S Master AS-BBKF-201Interbus S Slave AS-BBKF-202Interbus S Interface

890 USE 108 00 August 2001 199FHealth StatusAt a GlanceIntroduction The following information comprises a detailed description of the health status of

2 890 USE 108 00 August 2001

Hardware20890 USE 108 00 August 2001PCMCIA (E984-275/285 Only) The E984-275/285 CPUs support PCMCIA release 2.1 type II socket. The CPU provides routi

Health Status200890 USE 108 00 August 2001Checking System’s Health StatusSystem Health StatusThe Compact Controllers maintain a table in memory that c

Health Status890 USE 108 00 August 2001 201STAT Block DepictionSTAT is a two-high node instruction as the following conceptual depiction shows.Instruc

Health Status202890 USE 108 00 August 2001Mainframe StatusMainframe Status Table of RegistersThe first 11 words of the table of registers contains mai

Health Status890 USE 108 00 August 2001 203Word 3Controller StatusIf the bit is set to "1", the condition is TRUE. This table describes the

Health Status204890 USE 108 00 August 2001Word 5CPU Stop State ConditionsIf the bit is set to "1", the condition is TRUE. Word 6Number of Se

Health Status890 USE 108 00 August 2001 205Word 8Memory SizingThis word is used only with the A984-141/145, E984-241/245, and E984-251/255. It provide

Health Status206890 USE 108 00 August 2001I/O Module Health StatusOverview of theI/O Module Health StatusWords 12 ... 15 display the health of the A12

Health Status890 USE 108 00 August 2001 207Status InformationStructure of Status InformationThree words contain health and communication information o

Health Status208890 USE 108 00 August 2001

890 USE 108 00 August 2001 209GTroubleshooting and MaintenanceAt a GlanceIntroduction The following information relates to troubleshooting and mainten

Hardware890 USE 108 00 August 2001 21When downloading a new executive to your PLC you MUST disable the PLC password (via Concept) unless the PLC is st

Troubleshooting and Maintenance210890 USE 108 00 August 2001PLC CodesPLC Error Codes A 984 PLC, the Compact contains a set of 17 error codes. If the P

Troubleshooting and Maintenance890 USE 108 00 August 2001 211LED Error CodesFlashing RUN LED Error Codes E984-258/265/275/285The following tables show

Troubleshooting and Maintenance212890 USE 108 00 August 20013 0301 not master asic on cpu0302 master config write bad0303 lms bus DPM write failure030

Troubleshooting and Maintenance890 USE 108 00 August 2001 2138 8001 bad executive checksum8002 kernel prom checksum error8003 flash prog /erase error8

Troubleshooting and Maintenance214890 USE 108 00 August 20010202 modbus cmd-length is zero0203 modbus abort command error0204 run output active failed

Troubleshooting and Maintenance890 USE 108 00 August 2001 2155 0501 ram address test error6 0601 ram data test error7 0701 bad executive checksum8 800

Troubleshooting and Maintenance216890 USE 108 00 August 2001Modbus Plus LEDs A984-145, E984-245/255/265/275/285The MB Plus LED is a green indicator th

Troubleshooting and Maintenance890 USE 108 00 August 2001 217Battery MaintenanceBattery MaintenanceThe batteries are used to back up the RAM and to pr

Troubleshooting and Maintenance218890 USE 108 00 August 2001Conformally Coated MaintenanceMaintaining Conformally Coated ProductsUse the following inf

Troubleshooting and Maintenance890 USE 108 00 August 2001 219Customer Service & Technical AssistanceCustomer Service InformationSchneider Automati

Hardware22890 USE 108 00 August 2001Secured Data Area (SDA) (E984-258/265/275/285 Only)This feature allows you to configure an area in RAM that is sec

Troubleshooting and Maintenance220890 USE 108 00 August 2001Refer to the table for the correct bin files for your E984 Compact controller.Model Exec I

890 USE 108 00 August 2001 221AAddressingModbus Plus, 93Auxiliary memory cards, 39BBin numbers, 220BXT 201 cable, 108BXT 203, 111CCapacitive discharge

Index222890 USE 108 00 August 2001PPCMCIAStorage, 45PLC login passwordFeature, 20RRotary switchesE984-265/275/285, 84RTU communication mode, 79SSecure

Hardware890 USE 108 00 August 2001 23A120 I/O Support The Compact Controllers work with Modicon’s A120 Series of low-cost I/O modules. A120 modules ar

Hardware24890 USE 108 00 August 2001The A984-120/130 PLCsA984-120/130 Front PanelThese two models have identically designed front panels, with one Mod

Hardware890 USE 108 00 August 2001 25Memory Protect The memory protect switch is the top switch; it serves two purposes:If on, it prevents a programmi

Hardware26890 USE 108 00 August 2001LED Indicators The following table lists the LED indicators and their meaning.LED Indicator MeaningReady (amber) C

Hardware890 USE 108 00 August 2001 27The A984-131/141 & E984-241/251 PLCsA984-131/141 and E984-241/251 PLCs PanelsThese four models have identical

Hardware28890 USE 108 00 August 2001This is the panel. Slide Switches Two slide switches are located on the front panel of the controller directly abo

Hardware890 USE 108 00 August 2001 29Memory Protect The memory protect switch is the top switch; it serves two purposes:If on, it prevents a programmi

890 USE 108 00 August 2001 3Table of ContentsSafety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7About the Boo

Hardware30890 USE 108 00 August 2001LED Indicators The following table lists the LED indicators and their meaning.LED Indicators MeaningReady (amber)

Hardware890 USE 108 00 August 2001 31A984-145, E984-245/255 ControllersA984-145, E984-245/255 Front PanelThese models have identically designed front

Hardware32890 USE 108 00 August 2001Slide Switches The communication parameter slide switch is used to select a bridge mode between a Modbus master de

Hardware890 USE 108 00 August 2001 33The E984-258 ControllerE984-258 Front PanelThis model has two Modbus communications interfaces (RJ45), two three

Hardware34890 USE 108 00 August 2001Slide Switches Two three-position slide switches are located on the front of the CPU. The top switch is used for

Hardware890 USE 108 00 August 2001 35LED Indicators The following table shows LED Indicators on the E984-258 Controllers.Indicator Meaningready (yell

Hardware36890 USE 108 00 August 2001E984-265/275/285 ControllersE984-265/275/285 Front PanelThese three models have identically designed front panels,

Hardware890 USE 108 00 August 2001 37This is the panel. Slide Switches Two three-position slide switches are located on the front of the CPU. The top

Hardware38890 USE 108 00 August 2001PLC Interrupt ConnectionOne two-position connection is located on the front of the CPU. It is used to connect to t

Hardware890 USE 108 00 August 2001 39EEPROM Auxiliary Memory Capability (A984-1xx/E984-24x/251/255 Only)Auxiliary Memory SocketThe A984-1xx, E984-24x/

4 890 USE 108 00 August 2001Modbus Plus Communication Paths . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99Chapter 4 Hardware P

Hardware40890 USE 108 00 August 2001Writing to EEPROM Auxiliary MemoryUsing either Modsoft or Modsoft Lite programming software, you may write the con

Hardware890 USE 108 00 August 2001 41Reading EEPROM System DataData are read from an EEPROM card as part of the power-up sequence. If the controller d

Hardware42890 USE 108 00 August 2001Editing Logic Loaded from EEPROM Card (A984-1xx, E984-24x/251/255 Only)Editing Logic From EEPROM CardAn A984-1xx o

Hardware890 USE 108 00 August 2001 43Editing Procedure If Controller Has No BatteryFollow these steps if the controller has no battery.Step Action1

Hardware44890 USE 108 00 August 2001Program Storage using FLASH RAM & PCMCIA (E984-258/265/275/285 Only)Program Storage OverviewThe E984-258/265/2

Hardware890 USE 108 00 August 2001 45Storing to the PCMCIA or Internal FLASH CardSave to FLASH stores information to the PCMCIA or internal FLASH card

Hardware46890 USE 108 00 August 2001PCMCIA Operations and PLC Power Up Reading the PCMCIA/FLASH RAM data is performed automatically. The following tab

Hardware890 USE 108 00 August 2001 47PCMCIA LED Error ConditionsIf any the error conditions listed in the following table occurs, the loading of an ap

Hardware48890 USE 108 00 August 2001

890 USE 108 00 August 2001 492Software SupportAt a GlanceIntroduction This chapter describes the software packages that support the Compact family.

890 USE 108 00 August 2001 5P120-250(C) Power Supply Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184The P120-250(C) Speci

Software50890 USE 108 00 August 2001Panel Software SupportOverview The Compact Controllers may be configured, I/O Mapped, and programmed using Concept

Software890 USE 108 00 August 2001 51Modsoft Lite (A984-1xx, E984-24x/251/255 Only)Modsoft Lite (371SPU921000) is provided on 3.5 inch diskettes.Stand

Software52890 USE 108 00 August 2001Sequential Function ChartingSFC is especially suitable for sequential processes because it allows you to generate

Software890 USE 108 00 August 2001 53The Compact Instruction SetOverview The Compact instruction set is dependent on the Compact model:The A984-1xx, E

Software54890 USE 108 00 August 2001984 Ladder Logic Instruction SetThe three tables that follow list, in detail, all of the ladder logic programming

Software890 USE 108 00 August 2001 55The following table describes the DX Moves (Three Nodes), DX Matrix (Three Nodes), and Skip Node (One Node) ins

Software56890 USE 108 00 August 2001DX Matrix (Three-Nodes)AND Logically ANDs two matricesOR Does logical inclusive OR of two matricesXOR Does logical

Software890 USE 108 00 August 2001 57The following table describes Process Control Function Library (PCFL) (Three-Nodes) and the Ladder Logic Subrouti

Software58890 USE 108 00 August 2001(Two-Nodes)(One-Node)LAB Labels the entry point of a ladder logic subroutineRET Returns from the subroutine to sch

Software890 USE 108 00 August 2001 59Compact Loadable Software InstructionsYou can add loadable instructions to the resident instruction set.The follo

6 890 USE 108 00 August 2001

Software60890 USE 108 00 August 2001XMWT AND XMRD Function Blocks (E984-251/255 Only)The Extended Memory function blocks XMWT and XMRD function as des

Software890 USE 108 00 August 2001 61The extended memory Modbus read and write functions are described in the Modbus Protocol Reference Guide (PI-MBUS

Software62890 USE 108 00 August 2001SAVE Instruction Block(E984-258/265/275/285 Only)The SAVE block saves a block of 4x registers to state RAM. State

Software890 USE 108 00 August 2001 63LOAD Instruction Block (E984-258/265/275/285 Only)The LOAD block loads a block of 4x registers (previously saved)

Software64890 USE 108 00 August 2001Description of the DLOG Instruction Block (E984-275/285 Only)The DLOG (data logging) block allows state RAM data t

Software890 USE 108 00 August 2001 65Representation The following information describes the representation of the DLOG instruction block.The following

Software66890 USE 108 00 August 2001The following table defines the 4x registers in the DLOG control block.Register Function Description Content4x Err

Software890 USE 108 00 August 2001 67Middle Node ContentThe data area comprises a group of contiguous holding registers. The 4x register entered in th

Software68890 USE 108 00 August 2001

890 USE 108 00 August 2001 693Communication CapabilitiesAt a GlanceIntroduction The following information describes the communication features of the

890 USE 108 00 August 2001 7§Safety InformationImportant InformationNOTICE Read these instructions carefully and look at the equipment to become famil

Communication Capabiliites70890 USE 108 00 August 2001Modbus Communications A984 & E984-241/2519-Pin Port/Cable Pin-OutsThe A984-1xx and E984-241/

Communication Capabiliites890 USE 108 00 August 2001 71MODBUS Port Parameters(2-Position Slide Switch)Use the communication parameter slide switch on

Communication Capabiliites72890 USE 108 00 August 2001Modbus Communications E984-258/265/275/285RJ45 Port/Cable Pin-OutsThe E984-258/265/275/285 CPUs

Communication Capabiliites890 USE 108 00 August 2001 73Connector Pinouts(RJ45 to 9-Pin)The following table describes the connector pinouts of the RJ45

Communication Capabiliites74890 USE 108 00 August 2001Physical Connector(RJ45 to 25-Pin)The following figure shows the RJ45 to 25-pin connector. The f

Communication Capabiliites890 USE 108 00 August 2001 75Connector Pinouts(RJ45 to 25-Pin)The following table describes the connector pinouts of the RJ4

Communication Capabiliites76890 USE 108 00 August 2001MODBUS Port Parameters(3-Position Slide Switch)Two three-position slide switches are located on

Communication Capabiliites890 USE 108 00 August 2001 773-Position Slide Switch Setting OptionsThe following information provides detailed descriptions

Communication Capabiliites78890 USE 108 00 August 2001Setting the slide switch to the bottom position enables you to use software to configure the val

Communication Capabiliites890 USE 108 00 August 2001 79Generic Modbus Communication FunctionsModbus Communication ModesModbus can operate in two commu

8 890 USE 108 00 August 2001PLEASE NOTE Electrical equipment should be serviced only by qualified personnel. No responsi-bility is assumed by Schneide

Communication Capabiliites80890 USE 108 00 August 2001Modbus Plus Communications A984-145, E984-245/255Modbus Plus AddressingEach node on a Modbus Plu

Communication Capabiliites890 USE 108 00 August 2001 811 RR RRRR2 LR RRR R3 RL RRRR4 LL RRR R5RRLRRR6LRLRRR7RLLRRR8LLLRRR9RRRLRR10 L L R L R R11 R L R

Communication Capabiliites82890 USE 108 00 August 200135 R L R R R L36 L L R R R L37 R R L R R L38 L R L R R L39 R L L R R L40 L L L R R L41 R R R L R

Communication Capabiliites890 USE 108 00 August 2001 83Communication Parameters Slide Switch-Bridge ModeBridge mode allows you to access nodes on a Mo

Communication Capabiliites84890 USE 108 00 August 2001Modbus Plus Communications E984-265/275/28510-Position Rotary Switches-Node AddressingEach node

Communication Capabiliites890 USE 108 00 August 2001 85Communication Parameters Slide Switch-Bridge ModeBridge mode allows you to access nodes on a Mo

Communication Capabiliites86890 USE 108 00 August 2001Modbus Plus LEDsFlash Pattern DetailsThe MB Plus LED is a green indicator that shows the type of

Communication Capabiliites890 USE 108 00 August 2001 87Generic Modbus Plus CommunicationsModbus Plus Communication Protocol ReferenceThe A984-145, E98

Communication Capabiliites88890 USE 108 00 August 2001Modbus Plus Capabilities for CompactOverview of Modbus PlusModbus Plus is a local area network d

Communication Capabiliites890 USE 108 00 August 2001 89Multiple Modbus Plus networks can be interconnected using a BP85 Bridge Plus device.The followi

890 USE 108 00 August 2001 9About the BookAt a GlanceDocument Scope This manual presents information about the A & E Series Compact PLC’s includin

Communication Capabiliites90890 USE 108 00 August 2001How the A984-145, E984-245/255/265/275/285 Initiates Modbus Plus TransactionsA984-145 (or any pr

Communication Capabiliites890 USE 108 00 August 2001 91Bridge Mode Between Modbus and Modbus PlusSelecting Standard or Bridge CommunicationsThe standa

Communication Capabiliites92890 USE 108 00 August 2001Modbus Master Device ConnectionsIf a Modbus master device is connected to the Modbus port while

Communication Capabiliites890 USE 108 00 August 2001 93Addressing Ranges on Modbus PlusA single Modbus Plus network can have up to 64 addressable node

Communication Capabiliites94890 USE 108 00 August 2001Modbus Plus Address Routing SchemesAddress Schemes Between Modbus and Modbus PlusModbus devices

Communication Capabiliites890 USE 108 00 August 2001 95Destination Device RequirementsThe structure of the Modbus Plus routing address is determined b

Communication Capabiliites96890 USE 108 00 August 2001Note: The routing address scheme must be developed as part of an overall network planning proces

Communication Capabiliites890 USE 108 00 August 2001 97Direct, Explicit, and Implicit AttachesModbus to Modbus Plus Address ConversionThe manner in wh

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