WAGO-I/O-SYSTEM 750
Process Image 29
750-450 4 AI RTD
Manual
Version 1.2.0
4
Process Image
4.1
Overview
Presentation of control/status bytes a function of fieldbus
coupler/controller!
The I/O makes its complete process image, including the control/status bytes, to
the fieldbus coupler/controller. The
WAGO-I/O-
CHECK
startup tool access this
complete startup process image. The fieldbus coupler/controller uses a different
process image for provision of cyclic process data via the fieldbus. Presentation
of the control/status byte may be suppressed in this other process image,
depending on the fieldbus coupler/controller being used.
Table 22: Process Image
Process image
Input*
Output*
Byte 0 Status byte CH1_S0
Byte 0 Control byte CH1_C0
Byte 1 Function of status byte: Process
value or register value CH1_D0
Byte 1 Function of control byte: Reserved or
register value CH1_D0
Byte 2 Function of status byte: Process
value or register value CH1_D1
Byte 2 Function of control byte: Reserved or
register value CH1_D1
Byte 3 Control byte CH2_S1
Byte 3 Control byte CH2_C1
Byte 4 Function of status byte: Process
value or register value CH2_D0
Byte 4 Function of control byte: Reserved or
register value CH2_D0
Byte 5 Function of status byte: Process
value or register value CH2_D1
Byte 5 Function of control byte: Reserved or
register value CH2_D1
Byte 6 Status byte CH3_S2
Byte 6 Control byte CH3_C2
Byte 7 Function of status byte: Process
value or register value CH3_D0
Byte 7 Function of control byte: Reserved or
register value CH3_D0
Byte 8 Function of status byte: Process
value or register value CH3_D1
Byte 8 Function of control byte: Reserved or
register value CH3_D1
Byte 9 Status byte CH4_S3
Byte 9 Control byte CH4_C3
Byte
10
Function of status byte: Process
value or register value CH4_D0
Byte
10
Function of control byte: Reserved or
register value CH4_D0
Byte
11
Function of status byte: Process
value or register value CH4_D1
Byte
11
Function of control byte: Reserved or
register value CH4_D1
*) CHx_Sx = Status byte x of channel x
CHx_Cx = Control byte x of channel x
CHx_D0 = Low byte for process or register value of channel x
CHx_D1 = High byte for process or register value of channel x