Basler Electric BE1-11 Modbus Protocol - Manual (Page 5)

9424200774 Rev B iii
Contents
General Information .................................................................................................................................... 1
Message Structure .................................................................................................................................... 1
Device Address Field ............................................................................................................................. 1
Function Code Field ............................................................................................................................... 1
Data Block Field ..................................................................................................................................... 2
Error Check Field ................................................................................................................................... 2
Modbus
™ Modes of Operation .................................................................................................................. 2
Modbus
™ Over Serial Line ........................................................................................................................ 2
Message Structure ................................................................................................................................. 2
Message Framing and Timing Considerations ...................................................................................... 3
Modbus
™ on TCP/IP .................................................................................................................................. 3
Application Data Unit ............................................................................................................................. 3
MBAP Header Description ..................................................................................................................... 4
Error Handling and Exception Responses ................................................................................................ 4
BE1-11 Modbus
™ via Ethernet .................................................................................................................. 5
Communications Hardware Requirements................................................................................................ 5
Modbus
™ Over RS-485 Communication Requirements ........................................................................ 5
Modbus
™ Over Ethernet TCP/IP Communication Requirements .......................................................... 5
Detailed Message Query and Response for RTU Transmission Mode .................................................... 5
Read Holding Registers ......................................................................................................................... 5
Return Query Data ................................................................................................................................. 6
Restart Communications Option ............................................................................................................ 6
Listen Only Mode ................................................................................................................................... 6
Preset Multiple Registers ....................................................................................................................... 7
Preset Single Register ........................................................................................................................... 8
Data Formats ............................................................................................................................................. 8
Floating Point Data Format (Float) ........................................................................................................ 9
Long Integer Data Format (Uint32, Int32, and IP Address) ................................................................... 9
Integer Data Format (Uint16 and Int16) or Bit-Mapped Variables in Uint16 Format ............................. 9
Short Integer Data Format/Byte Character Data Format (Uint8 and Int8) ........................................... 10
String Data Format (String) .................................................................................................................. 10
CRC Error Check ................................................................................................................................. 11
Reading Fault Record Data ................................................................................................................. 11
Contiguous Poll Block Registers .......................................................................................................... 11
Register Table ........................................................................................................................................... 13
Conventions ............................................................................................................................................. 13
Register Table ......................................................................................................................................... 13
General ................................................................................................................................................ 13
SBO Select .......................................................................................................................................... 14
SBO Operate ....................................................................................................................................... 14
Direct Operate ...................................................................................................................................... 15
Binary Points ........................................................................................................................................ 15
Reporting ............................................................................................................................................. 31
Power Quality ....................................................................................................................................... 31
Fault Record ........................................................................................................................................ 32
Relay Settings ...................................................................................................................................... 33
Reporting Setup ................................................................................................................................... 35
Power Quality Setup ............................................................................................................................ 35
Demand Setup ..................................................................................................................................... 35
Fault Record Setup .............................................................................................................................. 35
Poll Block Settings ............................................................................................................................... 35
Metering ............................................................................................................................................... 39
Demand Data ....................................................................................................................................... 42
Global Settings ..................................................................................................................................... 44
BE1-11 Contents