Perle Systems IOLAN SCS User Manual
Page 15
15
Table of Contents
I/O UDP...................................................................................... 264
UDP Unicast Format............................................................................. 264
UDP Broadcast Packet .................................................................... 264
Analog Section ............................................................................... 265
Digital/Relay Section...................................................................... 266
Serial Pin Signal Section ............................................................... 266
UDP Unicast Example .......................................................................... 267
I/O Modbus Slave ..................................................................... 267
Modbus Serial Application Connected to the Serial Port ................. 267
Modbus Serial Application Connected to the Network..................... 267
Modbus TCP Application ..................................................................... 268
Modbus I/O Access.................................................................. 268
Function Codes .................................................................................... 268
I/O Coil/Register Descriptions............................................................. 269
Serial Port Coil/Register Descriptions................................................ 270
A4/T4 Registers .................................................................................... 270
A4D2/A4R2 Registers........................................................................... 271
D4/D2R2 Registers ............................................................................... 272
Serial Pin Signals ................................................................................. 272
TruePort I/O .............................................................................. 273
TruePort/Modbus Combination........................................................... 273
API Over TruePort Only ....................................................................... 274
Accessing I/O Data Via TruePort ............................................ 275
Introduction........................................................................................... 275
Setup...................................................................................................... 275
Format of API Commands ................................................................... 276
Get Commands ..................................................................................... 276
Set Commands ..................................................................................... 277
Command Format ............................................................................ 277
Successful Response Format .......................................................... 278
Unsuccessful Response Format ...................................................... 278
Error Codes........................................................................................... 279
I/O SNMP Traps ........................................................................ 279