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Description
Figure 2.2: Gateway operation
For remote control, a Modbus master writes control words to a dedicated internal data
table which is then cyclically sent to the corresponding GCP-30 or LS 4 unit. One remote
control data table is processed every 100 ms. This makes the remote control update cycles
depend on the number of units enabled for remote control. For example if 3 GCP-30s
are enabled for remote control, it takes 300 ms to send all control words to all GCP-30s,
if all 16 GCP-30 and all 8 LS 4 units are enabled for remote control it takes 2.4 seconds
((16 + 8) x 0.1 s) to transmit all control words to the connected units.
UMGCPMG-2201
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