Register Communication - WAGO -I/O-SYSTEM 750 Manual

2.1.1.10.4

Register communication

The values are set via control and status bytes C0/S0 for addressing and via
data bytes D0 and D1 for the transmission of the values to be set.
NOTICE:
Before writing data to the registers, "0x1235" needs to be written to the
password register 31.
The bits 0...5 of the control byte contain the register number.
Bit 6 (R/W) of the control byte sets the access direction (read/write).
To start the register communication, bit 7 (REG_COM) of the control byte is
set to "1".
The values to be set are written to the output data bytes D0 and D1 and can be
read via input data bytes D0 and D1.
NOTICE:
After writing to the registers, the set values should be verified by reading the
registers.
The corresponding bits of the control byte are mirrored in bits 0...5 and 7 of
the status byte.
NOTICE:
After writing to the registers, password register 31 must be reset with
"0x0000". Otherwise, write access to these registers is possible until the
supply voltage is disconnected.
The process for setting channels 1 and 2 are similar — via control and status
bytes C1/S1, as well as data bytes D2 and D3 for channel 3 via control and
status bytes C2/S2 and data bytes D4 and D5.
WAGO-I/O-SYSTEM 750
I/O-Modules
Configuration of the I/O Module via the Parameter Channel
750-636 [DC Drive Controller] • 55