WAGO-I/O-SYSTEM 750
Appendix 349
750-8207 PFC200 CS 2ETH RS 3G
Manual
Draft version 1.2.1 from 2017-09-13, valid from FW Version 02.06.20(09)
15.1.2.3 2 Channel Digital Input Modules with Diagnostics and Input Process
Data
750-507 (-508), -522,
753-507
The digital output modules have a diagnostic bit for each output channel. When
an output fault condition occurs (i.e., overload, short circuit, or broken wire), a
diagnostic bit is set. The diagnostic data is mapped into the Input Process Image,
while the output control bits are in the Output Process Image.
Table 252: 2 Channel Digital Input Modules with Diagnostics and Input Process Data
Input Process Image
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Diagnostic
bit S 2
Channel 2
Diagnostic bit
S 1
Channel 1
Output Process Image
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
controls
DO 2
Channel 2
controls
DO 1
Channel 1
750-506,
753-506
The digital output module has 2-bits of diagnostic information for each output
channel. The 2-bit diagnostic information can then be decoded to determine the
exact fault condition of the module (i.e., overload, a short circuit, or a broken
wire). The 4-bits of diagnostic data are mapped into the Input Process Image,
while the output control bits are in the Output Process Image.
Table 253: 2 Channel Digital Input Modules with Diagnostics and Input Process Data 75x-506
Input Process Image
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Diagnostic bit
S 3
Channel 2
Diagnostic bit
S 2
Channel 2
Diagnostic
bit S 1
Channel 1
Diagnostic bit
S 0
Channel 1
Diagnostic bits S1/S0, S3/S2: = ‘00’
standard mode
Diagnostic bits S1/S0, S3/S2: = ‘01’
no connected load/short circuit a24 V
Diagnostic bits S1/S0, S3/S2: = ‘10’
Short circuit to ground/overload
Output Process Image
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
not used
not used
controls
DO 2
Channel 2
controls
DO 1
Channel 1
