EUCHNER MSC - 9.1.10.10. Monitor (real-time I;O status - text - graphic)

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RELAY
The output relay is a relay output with a normally open contact. The relay outputs are
closed if the input IN is "1" (TRUE), otherwise they are open (FALSE).
Parameters
Category. There are three categories of relay out-
puts:
Category 1. Outputs with a category 1 relay.
Each module AZ-FO4/AZ-FO4O8 can have up to
four of these outputs.
Properties:
 Internal relays are monitored.
 External device monitoring contacts (EDM,
check on FBK 1-4) not used (not required for
category 1).
 Each output can be set to manual or automatic
starting.
Example with external relay Example with the internal relay only
Category 2. Outputs with a category 2 relay with OTE (Output Test Equipment) outputs.
Each module AZ-FO4/AZ-FO4O8 can have up to four of these outputs.
OTE: The OTE (Output Test Equipment) output is normally "1" (TRUE), except if there is an
internal error or a malfunction in conjunction with the feedback loop for external contac-
tors (FALSE).
Properties:
 Internal relays are always monitored.
 Monitored external device monitoring contacts
(EDM).
 The output can be configured for manual or
automatic starting. The external device moni-
toring (EDM) cannot be activated with manual
starting, only with automatic starting. If, how-
ever, manual starting with external device
monitoring is required, special logic must be
used (see information below).