WAGO I/O SYSTEM 750
Table of Contents
31
750-597 8AO 0-10V/±10V DC
Manual
Version 1.2.0
4.1
Overview
Presentation of control/status bytes a function of fieldbus
coupler/controller!
The I/O module always makes a complete process image incl. control/status
bytes available to the fieldbus coupler/controller. The
WAGO-I/O-
CHECK
startup
tool accesses the startup process image.
The fieldbus coupler/controller uses a different process image, in which display of
control/status bytes can be supported, to stage cyclic process data via the
fieldbus.
Table 16: Process Image
– I/O Module 750-597
Process Image
Output
1)
Input
2)
Byte 0
Status byte CH1_S0
Byte 0
Control byte CH1_C0
Byte 1
Function of status byte:
Process value CH1_D0
Byte 1
Function of control byte:
Reserved
Byte 2
Function of status byte:
Process value CH1_D1
Byte 2
Function of control byte:
Reserved
Byte 3
Control byte CH2_S1
Byte 3
Control byte CH2_C1
Byte 4
Function of status byte:
Process value CH2_D0
Byte 4
Function of control byte:
Reserved
Byte 5
Function of status byte:
Process value CH2_D1
Byte 5
Function of control byte:
Reserved
…
…
…
…
Byte 21 Control byte CH8_S7
Byte 21 Control byte CH8_C7
Byte 22 Function of status byte:
Process value CH8_D0
Byte 22 Function of control byte:
Reserved
Byte 23 Function of status byte:
Process value CH8_D1
Byte 23 Function of control byte:
Reserved
1)
CHx_Sx = Status byte x from channel x
CHx_D0 = Low byte for process value for channel x
CHx_D1 = High byte for process value for channel x
2)
CHx_Cx = Control byte x from channel x