Differences

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--- modbusdevicesexample_onlineoffline_localremote [2024/02/06 18:38] – [Configuring OnlineOfflineState and LocalRemoteState to Use the Device Tags] wikiadmin
+++ modbusdevicesexample_onlineoffline_localremote [2024/02/06 19:09] (current) – wikiadmin
@@ Line 1: / Line 1: @@
-=====Modbus Devices Example: Setting OnlineOffline and LocalRemote GEM VIDs from Coil Registers====
+=====Modbus Devices Example: Setting OnlineOffline and LocalRemote GEM VIDs from PLC Registers====
 It is a requirement of SECS/GEM that physical buttons or switches (or HMI UI elements exist serving this purpose) are available on the tool so that the operator has control of when the host may connect to (online/offline) and control (local/remote) the tool. Read more about this here: [[transsecs_vids|TransSECS VIDs]].
-The example below shows a simple way to use Modbus PLC 0x registers for this purpose. It is assumed that each coil is connected to the button controlling the Online/Offline or Local/Remote options.
+See also: Using Modbus 4x to monitor the [[writing_gem_state_variables_to_device_servers|ControlState VID]] value.
+The example below shows a simple way to use Modbus PLC 0x registers for this purpose. It is assumed that each coil is connected to the button controlling the Online/Offline or Local/Remote options. Any register type (4x,3x,1x or 0x) treated as a boolean (on/off or true/false) can be used for the OnlineOfflineState and LocalRemoteState data, but this example uses 0x (Coil) Modbus registers.
 ==== Online/Offline and Local/Remote VIDs====