Instruction manual
ControlWave Gas Flow Computer (GFC Plus) Instruction Manual (CI-ControlWave GFC Plus)
4-2 Operation Revised Feb-2013
Caution
When you disconnect power from the ControlWave GFC Plus, your
running control strategy is erased from SRAM, as is any process data not
stored in retention mode. When configured for retention and the backup
battery remains good, SRAM stores the last states of all I/O points,
audit/archive data not residing in FLASH, the values of all variables
marked RETAIN, the values of variables stored in the static memory area,
and any pending unreported alarm messages.
Power Down
To remove power from the ControlWave GFC Plus, unplug connectors
TB1 and TB2 from the CPU/System Controller board.
4.2 Communicating with the ControlWave GFC Plus
You communicate to the ControlWave GFC Plus by connecting a cable
between a port on your PC workstation and one of the ControlWave
GFC Plus ports.
The port at the PC workstation must match the configuration of the
ControlWave GFC Plus port.
4.2.1 Default Comm Port Settings
As delivered from the factory, ControlWave GFC Plus communication
ports have default settings. Table 4-1 details these defaults.
Table 4-1. Default Comm Port Settings
Port PCB Default Configuration
COM1 CPU RS-232; 115.2 Kbps using BSAP or ControlWave Designer
protocol. Note: The local port at the bottom of the door is
factory-wired to COM1.
COM2 CPU RS-232; 9600 baud, 8 bits, no parity, 1 stop bit, BSAP or
ControlWave Designer protocol
COM3 CPU RS-485; 9600 baud, 8 bits, no parity, 1 stop bit, BSAP or
ControlWave Designer protocol. Intended for use with Bristol
3808 transmitters. You use jumpers W12 through W16 to
configure COM3 for either RS-232 or RS-485
Note: You can re-enable the factory communication settings at any
time by setting CPU module switch SW2-3 to OFF.
Ethernet
Using an optional Ethernet port (located on the 33MHz versions of the
CPU module), you can connect either directly or through a network to a
PC equipped with an Ethernet port. The default IP address and mask
for the Ethernet port is:
ETH1 IP Address: 10.0.1.1 IP Mask: 255.255.255.