Campbell CH201, Product Manual

Page: 38 / 44

Table 7-6: RS-232 commands and responses
RS-232 command and response Description
Command:
CH201(3)
nnn.nn
<CR>
Where
nnn.nn = battery capacity in Ah
Response:
*Battery capacity =
nnn.nn
<CRC><CR><LF>
Enter battery capacity in Ah. Used to charge the battery
correctly. Must be non-zero to use the quicker dual-rate
charging scheme.
Command:
CH201(4)
nnn.nn
<CR>
Where
nnn.nn = battery charge deficit in Ah
Response:
*Qloss =
nnn.nn
<CRC><CR><LF>
Sets Qloss to zero. If not used, the CH201 will
automatically set Qloss to zero after trying to cycle
charge a battery for eight hours or more.
RS-232 command and response example:
Transmit:
CH201(0)0<CR>
Receive:
*,14.726,0.0514,0.0017,23.045,0.2922,25.03,14.699,18.45,7.00,2.99
126,CYCLE CHARGING,DC In 1,0,<CRC><CR><LF>
These values indicate the following:
Battery Voltage (V) =
14.726
Battery Current (A) =
0.0514
Load Current (A) =
0.0017
DC In 1 Voltage (V) =
23.045
DC In 2 Voltage (V) = 0.2922
Temperature (°C) =
25.03
Target Battery Voltage (V) =
14.699
Maximum Power Input Voltage (V) = 1 8.45
Battery Capacity (Ah) =
7.00
Qloss (Ah) =
2.99126
CH201 12V Charging Regulator 28