Instruction manual

2-10 / Installation CI-ControlWaveLP
Table 2-3 - CPU Bd. Switch SW2
Soft Switch, FLASH Write & Force Recovery Settings
SWITCH Function Setting - (ON = Factory Default)
SW2-A Not Used N/A
SW2-B Not Used N/A
SW2-C Force Recovery Control
ON = Force recovery mode (via CW Console)
OFF = Recovery mode disabled
SW2-D FLASH Download Control
ON = FLASH Download enabled
OFF = FLASH Download disabled
2.3.4 Communication Ports
A ControlWaveLP Process Automation Controller can be configured as a Master or Slave
node on either a MODBUS network or on a BSAP network. The ControlWaveLP contains
5 standard 9-pin Comm. Ports, i.e., COM1 through COM5 and an 8-pin Ethernet Port.
These ports are physically located on the CPU Board. All standard 9-pin Comm. Ports sup-
port asynchronous operation (not synchronous) and RS-232 operation. COM3 can be
configured for RS-232 or RS-485 operation via CPU Board Switch SW1 (see Table 2-6). The
Ethernet Port utilizes a RJ-45 connector and implements a 10Base-T Interface.
COM1 - Port 1: CPU Bd. J1, PC/AT 9-Pin Male D-Sub - RS-232
COM2 - Port 2: CPU Bd. J2, PC/AT 9-Pin Male D-Sub - RS-232
COM3 - Port 3: CPU Bd. J3, PC/AT 9-Pin Male D-Sub - RS-232/RS-485
COM4 - Port 4: CPU Bd. J4, PC/AT 9-Pin Male D-Sub - RS-232
COM5 - Port 5: CPU Bd. J5, PC/AT 9-Pin Male D-Sub - RS-232
Ethernet Port: CPU Bd. J19, RJ-45 8-Pin Female - 10Base-T Ethernet
Any of the five communication ports can be configured for local communications, i.e.,
connected to a PC.
The connections for the 9-pin, RS-232/485 interface are shown in Figure 2-5, while the
corresponding pin labels are provided in Table 2-4.
2.3.4.1 RS-232 & RS-485 Interfaces
Communications ports (COM1, COM2, COM4 & COM5) support RS-232 communications
only. RS-232 or RS-485 communications can be provided by communications port COM3.
RS-232 Ports
An RS-232 interface supports point to point half-duplex and full-duplex communications (20
feet maximum, using data quality cable). Half-duplex communications supported by the
ControlWave utilize MODBUS or BSAP protocol, while full-duplex is supported by the
Point to Point (PPP) protocol. ControlWaveLP RS-232 ports utilize the “null modem” cable
(Figure 2-5A) to interconnect with other devices such as a PC, printer, or another Control-
Wave series unit (except CW_10/30/35) when the ControlWaveLP is communicating using
the full-duplex PPP protocol. The half-duplex cable shown in Figure 2-5A is utilized when
the ControlWaveLP Process Automation Controller is connected to a ControlWaveLP or
to another ControlWave series unit (except CW_1-/30/35). If communicating with a Bristol
series 3305, 3310, 3330, 3335 or CW_10/30/35 RTU/DPC, one of the cables shown in Figure
2-5B must be used. Refer to Figure 2-5C to connect a ControlWaveLP to either a modem or
radio.