4
Appendix
Cole Palmer
Table 1 Commands (continued) (All bytes are in hex)
FUNCTION MASTER SENDS UNIT RESPONDS
Set Setpoint One* CA 00 01 F0 02(d1)(d2)(cs) CA 00 01 F0 03(qb)(d1)(d2)(cs)
Set Low Temp Warning CA 00 01 C0 02(d1)(d2)(cs) CA 00 01 C0 03(qb)(d1)(d2)(cs)
Set Low Temp Fault CA 00 01 C1 02(d1)(d2)(cs) CA 00 01 C1 03(qb)(d1)(d2)(cs)
Set High Temp Warning CA 00 01 E0 02(d1)(d2)(cs) CA 00 01 E0 03(qb)(d1)(d2)(cs)
Set High Temp Fault CA 00 01 E1 02(d1)(d2)(cs) CA 00 01 E1 03(qb)(d1)(d2)(cs)
Set Cool Proportional Band (P = 0.1 - 99.9) CA 00 01 F4 02(d1)(d2)(cs) CA 00 01 F4 03(qb)(d1)(d2)(cs)
Set Cool Integral (I = 0 - 9.99) CA 00 01 F5 02(d1)(d2)(cs) CA 00 01 F5 03(qb)(d1)(d2)(cs)
Set Cool Derivative (D = 0 - 5.0) CA 00 01 F6 02(d1)(d2)(cs) CA 00 01 F6 03(qb)(d1)(d2)(cs)
Set Heat Proportional Band (P = 0.1 - 99.9) CA 00 01 F1 02(d1)(d2)(cs) CA 00 01 F1 03(qb)(d1)(d2)(cs)
Set Heat Integral (I = 0 - 9.99) CA 00 01 F2 02(d1)(d2)(cs) CA 00 01 F2 03(qb)(d1)(d2)(cs)
Set Heat Derivative (D = 0 - 5.0) CA 00 01 F3 02(d1)(d2)(cs) CA 00 01 F3 03(qb)(d1)(d2)(cs)
Set On/Off Array
The Set On/Off Array command is used to set and/or request unit settings. The master can send the array with a value of
0 (turn off/disable), 1 (turn on/enable), or 2 (do not change). 0 or 1 causes the unit to change the setting, 2 only requests
the state of a setting. The slave returns values of 0 (off/disabled) or 1 (on/enabled).
(SW Version 02950.1A-E) CA 00 01 81 01(d1)(cs) CA 00 01 81 01(d1)(cs)
Sample - turn unit on CA 00 01 81 01 01 7B
* = limited to the range of the chiller **d1 - unit off = 0, on =1
command bytes shown in bold d2 - external sensor disabled = 0, enabled = 1
qb = qualifier byte, see Table 2 d3 - fault mode disabled = 0, enabled = 1
d1,d2 = 16 bit signed integer of the value being sent or received d4 - tenths display disabled = 0, enabled = 1
cs = the checksum of the string (see text) d5 - Alarms on internal = 0, or external
sensor = 1, (1 is invalid when d2 = 0, external
sensor disabled)
Table 2
QUALIFIER BYTE
00 0 precision, no units of measure
01 0 precision, °C
10 1 precision, no units of measure
11 1 precision, °C
20 2 precision, no units of measure
Example: The temperature of 45.6°C would be represented by the qualifier 11 hex, followed by the 2 bytes 01
C8 hex (456 decimal).
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