Comms Fail For Block Mappings; Repeater-Only" Configuration - Weidmuller WI-GTWY-9 User Manual

WI-GTWY-9-xxx Wireless Gateway
The Block mapping feature will allow a Write Block Mapping to itself. This could be useful if
you have a global output to indicate a comms problem from any remote module by block
mapping the internal status registers to a local DIO output.

4.5.9 Comms Fail for Block Mappings

Each block mapping has an associated mapping number. Up to 500 block mappings may be
entered. A status register is maintained for each block mapping. The most significant bit of this
register contains the comm fail status.
If a block mapping does not receive an acknowledgement from the remote module, then the
comms fail status is set - this can be monitored by the host device.

4.5.10 "Repeater-only" Configuration

Any WI-GTWY-9-xxx module can act as a repeater unit. However a WI-GTWY-9-xxx may
need to be installed as a repeater only (that is, there is no host device connected). In this case,
the base WI-GTWY-9-xxx, the WI-GTWY-9-xxx-MD1 unit would normally be used as this is
the lowest cost of the WI-GTWY-9-xxx modules.
A repeater can be configured as a "Repeater-only" unit. The advantages are:
the serial port will then provide on-line diagnostics (instead of off-line diagnostics), or
WI-I/O-EX-1-S-1x serial I/O modules can be connected to the serial port - normally an
MD1 could not be used as the serial ports would already be in use by the protocol device, eg
PLC, etc.
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