Condair LINKS Series - 6 Control Signal Settings

17Control signal settings
6 Control signal settings
If the demand or control signal is also to be transmitted via Modbus, the signal source must be set to
"Modbus" in "Menu> Password entry 8808> Conguration> Control Settings> Source" as shown below.
Important: If the demand or control signal via Modbus is used, no second, hard-wired demand or control
signal may be connected to the driver board!
Further information on the control settings can be found in the operating instructions for the correspond-
ing device.
Notes on monitoring of the bus communication
Monitoring of the bus communication as described below takes place only if the "Source" parameter in
the "Control Settings" submenu is not set to "Analog".
As soon as the control signal (demand or humidity signal) is transmitted via Modbus RTU or Modbus
TCP, the communication via the bus system is also monitored. The control signal must be periodically
updated within the time set in "BMS Timeout".
If the control signal is not updated within the set time, warning W35 "BMS Timeout" will be triggered
and the humidication will be stopped until the humidier receives a valid signal into one of the writable
holding registers.
This monitoring is intended to prevent the humidier from humidifying with the last transmitted value in
the event of a bus failure.