Toa NX-100S Installation - Manual (Page 108)

6-5
Chapter 6: APPENDIX
1.8. How the Contact Bridge Works
1.8.1. Basic operation
Whenever any variation in the contact input occurs, the input change information is communicated to the
preprogrammed output destination.
Note: No information is communicated when the contact input remains unchanged.
Network NX-100/100S Contact input ON Contact output ON NX-100/100S
Contact input Contact output Network communication
Input ON
Output ON
ON
Control result: OK
1.8.2. Retry operation
If a failure of contact bridge control is detected, the system automatically attempts to reestablish control after a
5-second interval (retry operation). The retry operation continues until the contact bridge has been
successfully controlled or the contact input status has changed.
Contact input Contact output Network communication
Input ON
5 s
Output ON
ON
Control result: NG
ON
Control result: NG
5 s
ON
Control result: OK
[Factors attributable to contact bridge
control failure]
• Contact input and output devices are not
recognized as existing in the same system.
(Their respective system names differ from
each other.)
• Contact output not set to standard mode.
• Timeout or error occurs in network
communications.