GE 1601-0149-A2 User Manual
489
Communications Guide
http://www.GEindustrial.com/multilin
i
GE Multilin
Table of Contents
Electrical Interface.................................................................................................................................. 1
Modbus RTU Description ...................................................................................................................... 1
Data Frame Format and Data Rate ....................................................................................................... 1
Data Packet Format................................................................................................................................ 2
CRC-16 Algorithm .................................................................................................................................. 3
Timing..................................................................................................................................................... 3
Modbus RTU Description ...................................................................................................................... 1
Data Frame Format and Data Rate ....................................................................................................... 1
Data Packet Format................................................................................................................................ 2
CRC-16 Algorithm .................................................................................................................................. 3
Timing..................................................................................................................................................... 3
Supported Functions ............................................................................................................................. 3
Function Codes 03/04: Read Setpoints / Actual Values ...................................................................... 4
Function Code 05: Execute Operation.................................................................................................. 5
Function Code 06: Store Single Setpoint............................................................................................. 5
Function Code 07: Read Device Status ................................................................................................ 6
Function Code 08: Loopback Test......................................................................................................... 6
Function Code 16: Store Multiple Setpoints........................................................................................ 7
Function Code 16: Performing Commands ......................................................................................... 8
Error Responses..................................................................................................................................... 8
Function Codes 03/04: Read Setpoints / Actual Values ...................................................................... 4
Function Code 05: Execute Operation.................................................................................................. 5
Function Code 06: Store Single Setpoint............................................................................................. 5
Function Code 07: Read Device Status ................................................................................................ 6
Function Code 08: Loopback Test......................................................................................................... 6
Function Code 16: Store Multiple Setpoints........................................................................................ 7
Function Code 16: Performing Commands ......................................................................................... 8
Error Responses..................................................................................................................................... 8
Memory Map Information..................................................................................................................... 9
User-Definable Memory Map Area ...................................................................................................... 9
Event Recorder....................................................................................................................................... 9
Waveform Capture .............................................................................................................................. 10
Dual Setpoints...................................................................................................................................... 10
Passcode Operation............................................................................................................................. 10
489 Memory Map................................................................................................................................. 11
Memory Map Data Formats ................................................................................................................ 40
User-Definable Memory Map Area ...................................................................................................... 9
Event Recorder....................................................................................................................................... 9
Waveform Capture .............................................................................................................................. 10
Dual Setpoints...................................................................................................................................... 10
Passcode Operation............................................................................................................................. 10
489 Memory Map................................................................................................................................. 11
Memory Map Data Formats ................................................................................................................ 40
Device Profile Document..................................................................................................................... 46
Implementation Table ......................................................................................................................... 47
Default Variations ................................................................................................................................ 48
Implementation Table ......................................................................................................................... 47
Default Variations ................................................................................................................................ 48
Binary Input / Binary Input Change (Objects 01/02) .......................................................................... 49
Binary / Control Relay Output Block (Objects 10/12)......................................................................... 51
Binary / Frozen Counter (Objects 20/21)............................................................................................. 52
Analog Input / Input Change (Objects 30/32)..................................................................................... 53
Binary / Control Relay Output Block (Objects 10/12)......................................................................... 51
Binary / Frozen Counter (Objects 20/21)............................................................................................. 52
Analog Input / Input Change (Objects 30/32)..................................................................................... 53
Table of Contents