Table 20: Control Byte C0; Table 21: Status Byte S0 - WAGO 750 Series Manual

WAGO-I/O-SYSTEM 750
750-652 Serial Interface RS-232 / RS-485

Table 20: Control byte C0

Bit 7
RC
IR
RC
X

Table 21: Status byte S0

Bit 7
RC
LGT
CHK
RCVT
X
0
RC
For evaluation of the bits of the status byte, see chapter "Diagnostics".
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Manual
1.2.0
Bit 6 Bit 5
X X
Initialization/reset (If the bit is set, the module is in the reset state.
Communication is started only after resetting the bit).
Reserved for internal communication
Not used
Bit 6 Bit 5
X X
The length of the telegram last received does not match the PI size.
Wrong checksum received.
No error-free transmission of the opposite side was received for >= 200 ms
(timeout).
After the timeout has elapsed, an attempt is made to reestablish communication
between the I/O modules. If a valid telegram is received from the
communication partner, the RCVT bit is reset.
Not used
This value is always 0.
Reserved for internal communication
Bit 4 Bit 3
X X
Bit 4 Bit 3
X RCVT CHK
Process Image
Bit 2 Bit 1
IR X
Bit 2 Bit 1
0
31
Bit 0
X
Bit 0
LGT