Fisher PCG-06, Installation, Operation And Service Manual, Page: 64 / 66

HYDRONIC CASSETTE 64
2.A.4 MASTER-SLAVE CONFIGURATION
Master unit: close SW6 [DIP switch] before power on. Master will beep twice to the LCD wireless
handset or LCD wall pad confirming receipt of commands. Each master can command up to 31 slave
units.
Slave unit: open SW6 [DIP switch] before power on. Slave unit will beep once to the LCD wireless
handset or LCD wall pad confirming receipt of commands.
Important note: Data loggers are not applicable to Master-Slave System.
2.A.5 MASTER-SLAVE CONTROL
Above control PCB can receive data from both wireless LCD handset and wired wall pad. Once wall pad
is connected to the PCB, receiver from the unit will stop receiving signal from wireless LCD handset.
LCD handset can only provide signal to Wall Pad receiver. When wall pad is disconnected from the PCB
for 5 seconds, it will revert to wireless LCD handset reception automatically.
2.A.6 MASTER-SLAVE COMMUNICATION METHOD
There are two modes for Master-slave structure.
Global Control communication
Master will broadcast the settings to all slave units. During normal operation, slave units can receive
commands from its wireless handset and wall pad control panel. Upon reception of master global
commands, all slave unit settings will be replaced by the master settings.
Addressable communication
Master controller must be LCD wall pad. Slave unit parameters are set as usual. Upon receiving the
control commands from a master, the addressed slave unit settings will be replaced by the master
settings.
If master unit is equipped with wireless LCD handset only, it can only use Global-Control communication
method. If it is equipped with LCD wall pad, it can use both communication methods.
DIP1 used for master slave address setting.
DIP switch address setting: 1 for ON, 0 for OFF.
SW6 SW5 SW4 SW3 SW2 SW1 Unit No. Remark
1 0 0 0 0 0 01 Master
0 0 0 0 0 0 01 Slave
- 0 0 0 0 1 02 Slave
- 0 0 0 1 0 03 Slave
- 0 0 0 1 1 04 Slave
- 0 0 1 0 0 05 Slave
- 0 0 1 0 1 06 Slave
- 0 0 1 1 0 07 Slave
- 0 0 1 1 1 08 Slave
- 0 1 0 0 0 09 Slave
- 0 1 0 0 1 10 Slave
- 0 1 0 1 0 11 Slave
- 0 1 0 1 1 12 Slave
- 0 1 1 0 0 13 Slave
- 0 1 1 0 1 14 Slave
- 0 1 1 1 0 15 Slave
- 0 1 1 1 1 16 Slave
- 1 0 0 0 0 17 Slave