ICP DAS USA ET-7000 Series - Page 139

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Appendix D: Modbus Application Notes
ET-7000 AIO User Manual, Apr. 2009, V1.04, EMH-011-104----------139
enable the settings to take effect.
AI High/Low Alarm
ET-7017 and ET-7017-10 module equip with the High/Low Alarm function. When the alarm
function is enabled, the specified registers are the alarm indicator. The alarm function is to
compare the analog input value with given high alarm value and low alarm value.
Address 00636 to 00667 can be used to enable/disable the AI High Alarm function. Address
00668 to 00699 can be used enable/disable the AI Low Alarm function.
ET-7017 AI High/Low Alarm Switch Table
AI High Alarm AI Low Alarm
Channel Number
Register
Description
Register
Description
AI0 00636 0: Disable / 1:Enable 00668 0: Disable / 1:Enable
AI1 00637 0: Disable / 1:Enable 00669 0: Disable / 1:Enable
AI2 00638 0: Disable / 1:Enable 00670 0: Disable / 1:Enable
AI3 00639 0: Disable / 1:Enable 00671 0: Disable / 1:Enable
AI4 00640 0: Disable / 1:Enable 00672 0: Disable / 1:Enable
AI5 00641 0: Disable / 1:Enable 00673 0: Disable / 1:Enable
AI6 00642 0: Disable / 1:Enable 00674 0: Disable / 1:Enable
AI7 00643 0: Disable / 1:Enable 00675 0: Disable / 1:Enable
AI8 00644 0: Disable / 1:Enable 00676 0: Disable / 1:Enable
AI9 00645 0: Disable / 1:Enable 00677 0: Disable / 1:Enable
Address 40296 to 40327 records the High Alarm value. Address 40328 to 40359 records the
Low Alarm value. By the default, the High Alarm value is 32767 and the Low Alarm value is
-32768.
ET-7017 AI High/Low Alarm Value Table
High Alarm Value of AI Low Alarm Value of AI
Channel Number
Register
Description
Register
Description
AI0 40296 -32768 ~ 32767 40328 -32768 ~ 32767
AI1 40297 -32768 ~ 32767 40329 -32768 ~ 32767
AI2 40298 -32768 ~ 32767 40330 -32768 ~ 32767
AI3 40299 -32768 ~ 32767 40331 -32768 ~ 32767
AI4 40270 -32768 ~ 32767 40332 -32768 ~ 32767