216 Rockwell Automation Publication 1734-UM013N-EN-P - September 2017
Appendix F I/O Assemblies
Output Assemblies
Analog Input Assemblies
Table 27 - 1734-OB8S Input Assemblies
Instance 
Decimal (hex)
Connection 
Type
Byte Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
580 (244 h) Safety and 
Standard
0Safety Output 7 
Status
Safety Output 6 
Status
Safety Output 
5 Status
Safety Output 
4 Status
Safety Output 
3 Status
Safety Output 
2 Status
Safety Output 
1 Status
Safety Output 
0 Status
1028 (404 h) Safety and 
Standard
0Safety Output 7 
Status
Safety Output 6 
Status
Safety Output 
5 Status
Safety Output 
4 Status
Safety Output 
3 Status
Safety Output 
2 Status
Safety Output 
1 Status
Safety Output 
0 Status
1Safety Output 
Monitor 7
Safety Output 
Monitor 6
Safety Output 
Monitor 5
Safety Output 
Monitor 4
Safety Output 
Monitor 3
Safety Output 
Monitor 2
Safety Output 
Monitor 1
Safety Output 
Monitor 0
1044 (414 h) Safety and 
Standard
0Safety Output 
Monitor 7
Safety Output 
Monitor 6
Safety Output 
Monitor 5
Safety Output 
Monitor 4
Safety Output 
Monitor 3
Safety Output 
Monitor 2
Safety Output 
Monitor 1
Safety Output 
Monitor 0
1 Reserved Combined 
Output Status
Reserved Output Power 
Error
(1)
Reserved
(1) This data is diagnostic only and does not have safety integrity.
Table 28 - 1734-OBV2S Input Assemblies
Instance 
Decimal (hex)
Connection 
Type
Byte Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
579 (243 h) Safety 0 Reserved Reserved Reserved Reserved Safety Output 
3 Status
Safety Output 
2 Status
Safety Output 
1 Status
Safety Output 
0 Status
1027 (403 h) Safety and 
Standard
0Safety Output 3 
Readback
Safety Output 2 
Readback
Safety Output 
1 Readback
Safety Output 
0 Readback
Safety Output 
3 Status
Safety Output 
2 Status
Safety Output 
1 Status
Safety Output 
0 Status
1043 (413 h) Safety and 
Standard
0 Reserved Reserved Reserved Reserved Safety Output 
3 Readback
Safety Output 
2 Readback
Safety Output 
1 Readback
Safety Output 
0 Readback
1 Reserved Combined 
Output Status
Reserved Output Power 
Error
(1)
Reserved
(1) This data is diagnostic only and does not have safety integrity.
Table 29 - Output Assemblies for all POINT Guard I/O™ Modules
Instance Decimal 
(hex)
Module Connection 
Type
Byte Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
33 (21 h) 1734-IB8S Safety
(1)
0
Reserved
Standard 
Output 3
Standard 
Output 2
Standard 
Output 1
Standard 
Output 0
564 (234 h) 1734-OB8S Safety Only 0 Safety 
Output 7
Safety 
Output 6
Safety 
Output 5
Safety 
Output 4
Safety 
Output 3
Safety 
Output 2
Safety 
Output 1
Safety 
Output 0
563 (233 h) 1734-OBV2S Safety Only 0 Reserved Reserved Reserved Reserved Safety 
Output 3
Safety 
Output 2
Safety 
Output 1
Safety 
Output 0
770 (302 h) 1734-IE4S Safety 0 Reserved Reserved Reserved Reserved Reset Tach 
3
(2)
Reset Tach 
2
(2)
Reset Tach 
1
(2)
Reset Tach 
0
(2)
(1) Only outputs 1 and 3 are configurable to Muting or Test Outputs. This assembly is accessible only over a Safety connection.
(2) When set (1), this bit specifies a reset of an overfrequency condition on the tachometer counter. Clear this bit to allow the tachometer channel to operate.
Table 30 - 1734-IE4S Input Assemblies
Instance 
Decimal (hex)
Connection 
Type
Byte High Byte Low Byte