TE Technology TC-36-25-RS485 - Manual (Page 48)

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9. SENSOR TYPE
Write Command: 2a
Read Command: 43
Interpret:
0: TS141 5K
1: TS67 OR TS136 15K
2: TS91 10K
3: TS165 230K
4: TS104 50K
5: YSI H TP53 10K
10. CONTROL TYPE
Write Command: 2b
Read Command: 44
Interpret:
0 is deadband control.
1 is PID control.
2 is computer control.
11. CONTROL OUTPUT POLARITY
Write Command: 2c
Read Command: 45
Interpret:
0 is HEAT WP1+ and WP2‐.
1 is HEAT WP2+ and WP1‐.
12. POWER ON/OFF
Write Command: 2d
Read Command: 46
Interpret:
0 is off.
1 is on.
13. OUTPUT SHUTDOWN IF ALARM
Write Command: 2e
Read Command: 47
Interpret:
0 is no shutdown upon alarm.
1 is to shutdown main output drive upon alarm.
14. FIXED DESIRED CONTROL SETTING
Write Command: 1c
Read Command: 50
Interpret:
When writing, multiply the desired control temperature by 100
10
and convert to
hexadecimal. This becomes the “send value.” When reading, convert the “return
value” to decimal and divide by 100
10
to convert to °F/°C.
When CONTROL TYPE is set to “computer control”, the output power sent to the
cooler can be set anywhere from ‐511
10
to +511
10
, corresponding to ‐100% to +100%
output power. Remember to convert to hexadecimal before sending.
15. PROPORTIONAL BANDWIDTH
Write Command: 1d
Read Command: 51
Interpret:
Fixed‐point temperature bandwidth distributed around the control setting in °F/°C. A
value of 5 °F/°C for bandwidth and control setting of 25 °F/°C would place the
proportional band from 20 °F/°C to 30 °F/°C; that is, 5 ° above and 5 ° below set point.
When writing, first multiply the desired bandwidth setting by 100
10
and convert to
hexadecimal for the “send value.” When reading, convert the “return value” to
decimal and divide by 100
10
to covert to °F/°C.