Table 1 (All bytes are in hex)
RS-232. For RS-485 substitute CC for CA as the lead character.
FUNCTION
MASTER SENDS
BATH RESPONDS
READ
Read Acknowledge
CA 00 01
00
00 FE
CA 00 01
00
02(v1)(v2)(cs)
Read Status*
CA 00 01
09
00 F5
CA 00 01
09
05(d1)(d2)(d3)(d4)(d5)(cs)
Read Internal Temperature
CA 00 01
20
00 DE
CA 00 01
20
03(qb)(d1)(d2)(cs)
Read External Sensor
CA 00 01
21
00 DD
CA 00 01
21
03(qb)(d1)(d2)(cs)
Read Setpoint (control point)
CA 00 01
70
00 8E
CA 00 01
70
03(qb)(d1)(d2)(cs)
Read Low Temperature Limit
CA 00 01
40
00 BE
CA 00 01
40
03(qb)(d1)(d2)(cs)
Read High Temperature Limit
CA 00 01
60
00 9E
CA 00 01
60
03(qb)(d1)(d2)(cs)
Read Heat Proportional Band (P) CA 00 01
71
00 8D
CA 00 01
71
03(qb)(d1)(d2)(cs)
Read Heat Integral (I)
CA 00 01
72
00 8C
CA 00 01
72
03(qb)(d1)(d2)(cs)
Read Heat Derivative (D)
CA 00 01
73
00 8B
CA 00 01
73
03(qb)(d1)(d2)(cs)
SET
Set Setpoint (control point)**
CA 00 01
F0
02(d1)(d2)(cs)
CA 00 01
F0
03(qb)(d1)(d2)(cs)
Set Low Temperature Limit**
CA 00 01
C0
02(d1)(d2)(cs)
CA 00 01
C0
03(qb)(d1)(d2)(cs)
Set High Temperature Limit**
CA 00 01
E0
02(d1)(d2)(cs)
CA 00 01
E0
03(qb)(d1)(d2)(cs)
Set Heat Proportional Band
CA 00 01
F1
02(d1)(d2)(cs)
CA 00 01
F1
03(qb)(d1)(d2)(cs)
(P = 0.1-99.9)
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
CA 00 01
81
08(d1)... (d8)(cs)
CA 00 01
81
08(d1)...(d8)(cs)
d1 = unit on/off, d2 = sensor enable, d3 = faults enabled, d4 = mute,
d5 = auto restart, d6 = 0.01°C enable, d7 = full range cool enable,
d8 = serial comm enable (di: 0 = off, 1 = on, 2 = no change)
For example, to turn the unit on send CA 00 01 81 08 01 02 02 02 02 02 02 02(cs)
BATH ERROR RESPONSES
Bad Command
N/A
CA 00 01
0F
02 01(ed)(cs)
Bad Checksum
N/A
CA 00 01
0F
02 03(ed)(cs)
command bytes shown in
bold
qb = qualifier byte, see Table 3
d1,d2 = 16 bit signed integer of the value being sent or received
cs = the checksum of the string (see text)
ed = echo back of the command byte as received
v1.v2 = protocol version
* See Read Status, Table 2
** limited to the range of the bath
Appendix B
B - 4
Содержание NESLAB EX Series
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