Rice Lake EL232 XPCD Explosion Proof Remote Serial Display - Manual (Page 21)

Indicator Setup 17
3.3 Configuration of the EL232 XPCD
To configure the EL232 XPCD, you must know the following:
• Baud rate
• Indicator type
• Data format - RS232 or 20 mA current loop
Once this information is known, it is entered through SW1, the eight-position DIP switch on the upper left hand
corner of the CPU board, shown below:
Figure 3-8. RS232 XPCD CPU Board
Enter the correct values from Table 3-2.
Refer to Table 3-3 on page 18 for specific switch
settings for applicable indicators.
The power must be off when these values are changed.
If the power is on, press the
Reset switch on the CPU
board to enter the new values (see Figure 3-9).
Figure 3-9. Reset Switch Location
J1
GND PRINT K4 K3 K2 K1 +5V CL4 IN- CL4 IN+ CL3 IN- CL3 IN+ CL2 IN- CL2 IN+ CL1 IN- CL1 IN+ CLO OUT
-
CLO OUT+ RS232 (-) RS232 (+)
J2
GND NEUTRAL 117 V
A
C
SW2
OPEN
1
2
3
4
OPEN
1
2
3
4
6
7
8
5
SW1
+5
+5
MOSI
SCK
PA7/LD
GND
GND
TxD
RxD
PB
PB6
PB5
PB4
RESET
1 2 3 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
MICROPROCESSOR
Baud Rate
Speed SW1-1 SW1-2
1200 On On
2400 Off On
4800 On Off
9600 Off Off
Table 3-2. Baud Rate Setting
J2
SW2
OPEN
1
2
3
4
GND
TxD
RxD
PB
PB6
PB5
PB4
RESET SWITCH