64
Parameterizing
WAGO-I/O-SYSTEM 750
750-636/000-x00 DC Drive Controller 24V/5A
Manual
Version 2.1.0
the previous request, the D0 and D1 bytes of the PAE then receive the current
value of the respective register.
Bits 0 ... 5 of control byte REG_C receive the register number. The access
direction (read/write) is set via bit 6 (R/W) of control byte REG_C.
Table 29: Assignment of Control Byte REG_C for Register Communication
Control Byte REG_C
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
1
RW
REG_NO
REG_NO
Register number (e.g. 56 or 57)
RW
0: Read access
1: Write access
The I/O module processes the register communication operation. When the
operation is completed, the I/O module mirrors the corresponding bits of control
byte REG_C in bits 0 ... 5 and 7 of status byte REG_S.
Table 30: Assignment of Status Byte REG_S for Register Communication
Status Byte REG_S
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
1
0
REG_NO
REG_NO
Register number (e.g. 56 or 57)
If a successful write operation is involved, the I/O module has saved the data in
bytes REG_D0 and REG_D1 of the PAA in the respective register.
If a successful read operation is involved, bytes REG_D0 and REG_D1 of the
PAE receive the value read from the respective register.
Enter password!
Some registers are protected against accidental changes. If you want to change such
registers, you have to overwrite password register 31 with "0x1235"
!
Check write operation by subsequent read operation!
Confirmation of write access to a register only confirms completion of the
operation. Specific access permissions and validation rules apply to registers.
Accordingly, the I/O module may conform the operation, but not write the
register. Therefore, check the success of the write operation by then reading the
value of the register!
