HollySys LK Series User Manual

Chapter 7 IO Module
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Diagnosis Information
Meaning
166
7
Upper limit exceeded, Decimal
online value is 167
8
Lower limit exceeded, Decimal
online value is 168
0
Channel fault recovery, Decimal
online value is 160
Example:
Channel diagnosis data 0x80, 0x40, 0xA2 indicates that channel 1 has under range alarm.
Channel diagnosis data 0x80, 0x41, 0xA3 indicates that channel 2 has over range alarm.
Channel diagnosis data 0x80, 0x42, 0xA6 indicates that channel 3 has line broken alarm.
Channel diagnosis data 0x80, 0x43, 0xA7 indicates that channel 4 has upper limit exceeded alarm.
7.7.6.1 Optional Alarms
The alarms that are provided by each range for the LK441 module are different, as shown in Table
7-57.
Table 7-57 LK441 Alarm List Based on Different Ranges
Range Limit
Thermocouple Type
Internal Range Code
Alarm Type
-12 mV~78 mV
－
13
Over-limit alarm, over range alarm
-12 mV~32 mV
－
14
Over-limit alarm, over range alarm
300~1820°C
Type B
207
Over-limit alarm, line broken alarm
0~1725°C
Type C
208
Over-limit alarm, over range alarm
0~2315°C
Type C
209
Over-limit alarm, line broken alarm
-270~415°C
Type E
210
Over-limit alarm, over range alarm
-270~1000°C
Type E
211
Over-limit alarm, line broken alarm
-210~550°C
Type J
212
Over-limit alarm, over range alarm
-210~1200°C
Type J
213
Over-limit alarm, line broken alarm
-270~725°C
Type K
214
Over-limit alarm, over range alarm
-270~1372°C
Type K
215
Over-limit alarm, line broken alarm
-270~840°C
Type N
216
Over-limit alarm, over range alarm
-270~1300°C
Type N
217
Over-limit alarm, line broken alarm
-50~1768°C
Type R
218
Over-limit alarm, line broken alarm
-50~1768°C
Type S
219
Over-limit alarm, line broken alarm
-270~400°C
Type T
220
Over-limit alarm, line broken alarm
Note: when using a thermocouple range, if thermocouples of a same type has two temperature ranges
available, for example, for Type C thermocouples, the two ranges are 0~1725
℃
and 0~2315
℃
.
When configuring in a smaller temperature range, for example, if a Type C thermocouple selects a

HollySys LK Series Specifications

General

Brand	HollySys
Model	LK Series
Category	Controller
Language	English