58 Rockwell Automation Publication 2080-UM003A-EN-E - March 2013
Appendix B Expansion I/O Data Mapping
2085-OW8 and 2085-OW16 I/O Data Mapping
Discrete output states can be read from Global Variables _IO_Xx_ST_yy, where
“x” represents the expansion slot number 1…4 and yy represents the point number
00…07 for 2085-OW8 and 00…15 for 2085-OW16.
Discrete output states can be written to Global Variables _IO_Xx_DO_yy, where
“x” represents the expansion slot number 1…4 and yy represents the point number
00…07 for 2085-OW8 and 00…15 for 2085-OW16.
Analog I/O Data Mapping
The following sections provide I/O and status mapping for the following analog
expansion I/O modules:
2085-IF4 I/O Data Mapping
Analog input values are read from Global Variables _IO_Xx_AI_yy, where “x”
represents the expansion slot number 1…4 and yy represents the channel number
00…03.
Analog input status values can be read from Global Variables IO_Xx_ST_yy,
where “x” represents the expansion slot number 1…4 and yy represents the status
word number 00…02.
2085-IF8 I/O Data Mapping
Analog input values are read from Global Variables _IO_Xx_AI_yy, where “x”
represents the expansion slot number 1…4 and yy represents the channel number
00…07.
Catalog Number Description
2085-IF4 4-channel, 14-bit analog voltage/current input module
2085-IF8 8-channel, 14-bit analog voltage/current input module
2085-OF4 4-channel, 12-bit analog voltage/current output module
2085-IRT4 4-channel, 16-bit RTD and Thermocouple input module
Use the Connected Components Workbench software to see
Global Variables.
2085-IF4
(1)
Status Data Mapping
Word R/W1514131211109 8 7 6 5 4 3 2 1 0
Status 0 R PU GF CRC Reserved
Status 1 R Reserved HHA1 LLA1 HA1 LA1 DE1 S1 Reserved HHA0 LLA0 HA0 LA0 DE0 S0
Status 2 R Reserved HHA3 LLA3 HA3 LA3 DE3 S3 Reserved HHA2 LLA2 HA2 LA2 DE2 S2
(1) See Field Descriptions table for definition of each bit.
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