FC BAP – Modbus & analog control v0.
1 GENERAL One BAP is used to control one or several units in a FC system. The units should be of the same kind, e.g. Air Curtains. All units connected, even if they are set up in zones, are controlled at the same time, either via analog or Modbus control. Analog control and Modbus feedback can also be used. In this document analog control and Modbus registers are presented. The Maximum number of BAP units in a system is one. 2 SET-UP VIA DIP SWITCHES The BAP should be connected anywhere in the FC bus, e.
2.2 Baud rate settings DIP 5 (BR1) OFF OFF ON ON 2.3 Result 9600 bps 19200 bps 38400 bps 57800 bps Parity settings DIP 7 ON OFF OFF 3 DIP 6 (BR0) OFF ON OFF ON DIP 8 ON/OFF OFF ON Result No parity (2 stop bits) Even parity (1 stop bit) Odd parity (1 stop bit) ANALOG CONTROL 3.1 Input The inputs are potential-free “switch” inputs.
“Running indication” Short circuit = OK Open circuit = Critical alarm is active, i.e. fan or heat problem “Alarm” Short circuit = OK Open circuit = Alarm is active 3.3 Modbus + Analog control The analog control can be used together with Modbus, by setting: PRM_BAP_ANALOG_CTRL_ENABLE. (1 = enable, 0 = disabled) 4 REGISTER MAPS Details for registers, such as register range and default settings, are presented in special document, FC Modbus register overview. 4.
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4.1.4 Injecting sensor values from BMS Offset 9 10 11 Type R/W R/W R/W Corresponding parameter Description RTX from BMS. 3000 = not reported. (0.1’c) OTX from BMS. 3000 = not reported. (0.1’c) Door contact status from BMS. 3000 = not reported. 0: closed 1: open Sensor values can be set from BMS by writing values to registers. Set values can be read. If register value is read as ‘3000’, sensor value is not broadcasted to FC system.
