User Manual
8
Siemens A6V101037195_en--_b
Smart Infrastructure 2020-07-09
Register 769 "State"
Status
Bit 00 1 = Not available Bit 06
1 = Not available
Bit 01 1 = Backup mode active Bit 07
1 = Not available
Bit 02 1 = Not available Bit 08
1 = Not available
Bit 03 1 = Not available Bit 09 1 = Self-test failed
Bit 04 1 = Mechanical error, device blocked
manual intervention
1)
or calibration
1)
Bit 10 1 = Self-test successful
Bit 05 1 = Not available Bit 11 1 = Not available
1)
After 10 seconds
Supported function codes
Function codes
03 (0x03) Read holding register
04 (0x04) Read input registers
06 (0x06) Write single register
16 (0x10) Write multiple registers (Limit: Max. 120 registers within one write operation)
Communication properties
Communication
Communication protocol Modbus RTU RS-485, not galvanically isolated
Number of nodes Max. 32
Address range 1...248 / 255
Factory setting 255
Transmission formats 1-8-E-1, 1-8-N-1, 1-8-O-1, 1-8-N-2
Factory setting 1-8-E-1
Baud rates (kbaud) Auto / 9.6 / 19.2 / 38.4 / 57.6 / 78.4 / 115.2
Factory setting Auto
Bus termination 120 Ω electronically switchable
Factory setting Off
Connection diagrams
Device diagram/Connecting cable
The actuators come with a prewired connecting cable. All devices connected to it must be
connected to the same neutral line G0.
Wire
code
Wire color Termina
l code
Meaning Connection diagram
1 red RD G Voltage phase AC 24 V
2 black BK G0 Voltage neutral line AC 24 V
6 violet VT REF Reference line (Modbus RTU)
8 gray GY + Bus + (Modbus RTU)
9 pink PK - Bus - (Modbus RTU)