Omron NT-series Programmable Terminal V022-E3-1 - Manual (Page 213)

Reference


  
  
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Section 5-5
Since all the CVM1/CV-series special auxiliary relays are allocated to the system,
they cannot be used for applications not related to the system.
The range of each memory area differs according to the PC type. See “Appendix L
PC Memory Map” (page 291) for more details.
Procedure 1. Use the support tool to allocate the PT status notify area (PT
→
PC) to the PC
memory.
2. Write a PC program to read the “PT status” word of the PT status notify area
and check each bit status.

Report timing of PT status notify bit
The information in the PC status notify area (PT
→
PC) is written to the PC when
the NT600S status is changed during operation.
Example of Using the PT Status Notify Bit
An operation example in which the NT600S status is checked by operating the PT
status notify bit is explained below.
 Setting by the support tool
Perform the following setting with the support tool.
PT status notify area allocated word: CH0110
PT error storage area allocated word: DM0001

PC program
Create the following PC ladder program.
@MOV(21)
#1
DM0001
11215
11213
11215
@MOV(21)
#2
DM0001
@MOV(21)
#3
DM0001
(1)
NT600S: stopped, Battery: low
PT status error storage word
(2)
NT600S: stopped, Battery: normal
PT status error storage word
(3)
NT600S: operating, Battery: low
PT status error storage word
11213
11213
11213
@MOV(21)
#4
DM0001
(4)
NT600S: operating, Battery: normal
PT status error storage word