Steppercontroller; Table 460: Steppercontroller Rs 422 / 24 V / 20 Ma 750-670 - WAGO -I/O-SYSTEM 750 Manual

WAGO-I/O-SYSTEM 750
750-882 Media Redundancy ETHERNET Controller
Output Process Image
Instance
n
The specialty modules represent 1x6 bytes input and output data and seize 1
Instance in Class (0x67) and 1 Instance in Class (0x68).
13.3.5.9

Steppercontroller

750-670
The Steppercontroller RS422 / 24 V / 20 mA 750-670 provides the fieldbus
coupler 12 bytes input and output process image via 1 logical channel. The data
to be sent and received are stored in up to 7 output bytes (D0 ... D6) and 7 input
bytes (D0 ... D6), depending on the operating mode.
Output byte D0 and input byte D0 are reserved and have no function assigned.
One I/O module control and status byte (C0, S0) and 3 application control and
status bytes (C1 ... C3, S1 ... S3) provide the control of the data flow.
Switching between the two process images is conducted through bit 5 in the
control byte (C0 (C0.5). Activation of the mailbox is acknowledged by bit 5 of the
status byte S0 (S0.5).

Table 460: Steppercontroller RS 422 / 24 V / 20 mA 750-670

Input Process Image
Instance
n
*) Cyclic process image (Mailbox disabled)
**) Mailbox process image (Mailbox activated)
Byte Destination
High Byte
C1
D1
D3
Byte Destination
High Byte
reserved
D1
D3
D5
S3
S1
Low Byte
C0 Control byte C1
Setpoint position Setpoint position
D0
Setpoint position
D2
(MSB)
Low Byte
S0 reserved
D0
D2 Process data*) / Mailbox**)
D4
Status byte S3
D6
S2 Status byte S1
I/O Modules 391
Description
Control byte C0
(LSB)
Setpoint position
Description
Status byte S0
Process data*) /
reserved**)
Status byte S2
Manual
1.5.0