Setting Method; Operating Procedure; Service Execution Timing - Mitsubishi Electric MELSEC iQ-R Series User Manual

Setting method

Use the following buffer memory areas to execute the services.
• 'Service request area 1' (Un\G50000 to Un\G52087) or 'Service request area 2' (Un\G52250 to Un\G54337)
• 'Service execution request 1, Service execution request 2' (Un\G17057)
• 'Service execution status' (Un\G17144)
• 'Service response area 1' (Un\G57000 to Un\G59087) or 'Service response area 2' (Un\G59250 to Un\G61337)

Operating procedure

The following describes the procedure before starting a service.
For an example, the following describes the procedure for using Service request area 1.
1.
Set a setting value specified for each service in 'Service request area 1' (Un\G50000 to Un\G52087).
2.
Turn on 'Service request area 1 execution request bit' (Un\G17057.0).
3.
After the system has turned on 'Service request area 1 execution request acceptance bit' (Un\G17144.8), 'Service
request area 1 execution request completion bit' (Un\G17144.0) turns on.
4.
Read the data stored in 'Service response area 1' (Un\G57000 to Un\G59087).
5.
Turn off 'Service request area 1 execution request bit' (Un\G17057.0).
6.
After the system has turned off 'Service request area 1 execution request acceptance bit' (Un\G17144.8), 'Service
request area 1 execution request completion bit' (Un\G17144.0) turns off.

Service execution timing

The following describes the execution timing of a service.
For an example, the following figure shows a timing chart of when Service request area 1 is used.
'Service request area 1' (Un\G50000 to Un\G52087)
'Service request area 1 execution request bit' (Un\G17057.0)
'Service request area 1 execution request acceptance bit'
(Un\G17144.8)
'Service response area 1' (Un\G57000 to Un\G59087)
'Service request area 1 execution request completion bit'
(Un\G17144.0)
Set data.
ON
OFF
ON
OFF
OFF
Execute a service.
OFF
OFF
Obtain data.
ON
OFF
1 FUNCTIONS
1.3 Service Interface Function
1
25