Commissioning; Setting Parameters Via Register Communication - WAGO -I/O-SYSTEM 750 Manual

WAGO-I/O-SYSTEM 750
750-464 2/4 AI RTD configurable
7

Commissioning

7.1

Setting Parameters via Register Communication

The operating mode and the parameters for the 750-464 I/O module can be set
directly using the register communication.
The values for channel 1 are set via control byte C0 and status byte S0 for the
addressing and via the data bytes D0 and D1 for the transmission of values to be
set.
Enter the password!
Before writing to the user register 32 and following, "0x1235" must be written to
the password register 31.
The number of user registers depends on the I/O module used.
The bits 0 ... 5 of the control byte contain the register number.
Via bit 6 (R/W) the access directions (read or write) are set.
To switch on the register communication, bit 7 (Reg_Com) is set to "1".
No access to process data during register communication!
During register communication, process data cannot be accessed!
Process data that may be displayed are invalid!
The values to be set are written into the output data bytes D0 and D1.
Via the input data bytes D0 and D1, the set values can be read out of the
I/O module.
Check the set values!
After writing to the register, the set values can be checked by reading out the
registers.
The corresponding bits of the control byte are mirrored in bits 0 ... 5 and 7 of the
status byte.
Do not forget: Reset the password!
After writing to the registers, the password register 31 must be reset with
"0x0000". Otherwise write access to these registers remains enabled as long as
the supply voltage is switched on.
Commissioning 77
Manual
Version 1.1.0