Appendix 2 Transmission Delay Time When Module Whose Serial Number (First Five Digits) Is "10031" Or Earlier Is Included - Mitsubishi Electric MELSEC QS Series User Manual

APPENDIX
Appendix 2 Transmission Delay Time when Module whose Serial
Number (First Five Digits) is "10031" or Earlier is Included
When even one module whose serial number (first five digits) is "10031" or earlier is
included in the system, which is configured with the safety CPU module, safety master
module, and safety remote I/O stations (QS0J65BTB2-12DT), the calculation formula for
transmission delay time (the length of time before data transmission is completed)
between a safety master station and safety remote I/O stations will be as follows.
[Calculation formula]
(1) Safety refresh monitoring time
(2) Safety master station (RX)
App
Appendix 2 Transmission Delay Time when Module whose Serial Number
-2
(First Five Digits) is "10031" or Earlier is Included
*1
• SM :Sequence scan time of safety CPU module
• LS:Link scan time (Refer to Section 5.1.)
• n:(LS/SM) value that is rounded up to the nearest whole number
• m:{Safety refresh response processing time
to the nearest whole number
* 1: For the calculation of SM, refer to the "QSCPU User's Manual (Function Explanation, Program
Fundamentals)".
To use the constant scan function in the safety CPU module whose serial number (first five digits)
is "10031" or earlier, set the value to be "the specified constant scan value + 2ms".
* 2: For the safety refresh response processing time and the safety remote station input/output
response time, refer to the manual of the relevant safety remote I/O station.
<Synchronous mode>
Safety refresh monitoring time
<Asynchronous mode>
Safety refresh monitoring time
POINT
When the safety CPU module detects CC-LINK DATA RECEPTION TIMEOUT
(error code: 8320 to 8322), increase the safety refresh monitoring time as needed.
[Normal value (CC-Link Safety line is stable.)]
SM + (SM n) 3 + (SM
[ms]
[Normal value (CC-Link Safety line is unstable.)]
(Safety refresh monitoring time
*1
time - (SM n) 4 [ms]
*2
/(SM
*1
SM + (SM n)
*1
SM + (SM n)
Safety remote I/O station (input)
n) m + Safety remote station input response time
2) + Safety remote station input response
n)} value that is rounded up
4 + (SM n) m [ms]
4 + LS + (SM n) m [ms]
*1