CONTREX CX-1200 - Manual (Page 231)

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DIG I/O MONITOR P1/1
The DIG I/O Monitor screen displays the status (state) of all the digital inputs and outputs.
DI 7..0
Digital Input 7..0 (MP-100) displays the value of the “J6” digital inputs. A ‘1’ in the bit location indicates a “low
voltage” condition on the corresponding input (which is consistent with a contact closure to common). Refer to
Appendices: Appendix C for the DI 7..0 (MP-100) bit map list. The Help screen for DI 7..0 (MP-100) also contains
a bit map list.
DI 15..8
Digital Input 15..8 (MP-101) displays the value of the “J7” digital inputs. A ‘1’ in the bit location indicates a “low
voltage” condition on the corresponding input (which is consistent with a contact closure to common). These eight
inputs can be set up in the PLC Programming screen to generate a One-Shot -Pulse on a high-to-low transition.
Refer to Appendices: Appendix C for the DI 15..8 (MP-101) bit map list. The Help screen for DI 15..8 (MP-101) also
contains a bit map list.
DO 7..0
Digital Output 7..0 (MP-102) displays the value of the “J2” digital outputs. A ‘1’ in the bit location indicates an active
“low voltage” condition on the corresponding open collector output (which would sink DC current). Refer to
Appendices: Appendix C for the DO 7..0 (MP-102) bit map list. The Help screen for DO 7..0 (MP-102) also contains a bit
map list.