Mitsubishi Electric MELSEC QS Series User Manual page 67

5
DATA LINK PROCESSING TIME AND STATION
STATUS AT ERROR OCCURRENCE
(5) Response performance
The response performance is the time from when a signal is input to a remote station
and then sequence processing is performed in the safety CPU module until when a
signal is output from a remote station.
When a safety remote I/O station receiving input signals and another safety remote
I/O station sending output signals are connected to the same safety master module,
the following formulas can be used for calculating the response performance. The
time can be calculated in different formulas, depending on the combination of the
versions of safety CPU module, safety master module, and safety remote I/O stations
to be used. For the combination of the versions other than below, refer to Appendix 2.
[Calculation formula]
Safety remote station input response time + Safety data monitoring time + Safety
remote station output response time [ms]
(Example)
Safety CPU Safety master
module module
10032 or higher 10032 or higher
• No. of connected stations
• Transmission speed
•
• SM
• Safety remote station
• Safety data monitoring time = Safety refresh monitoring time
• Response performance
5.2 Transmission Delay Time
5.2.1 Safety master station Safety remote I/O station
Serial number (first five digits)
Safety remote station
QS0J65BTS2-8D, QS0J65BTS2-4T QS0J65BTB2-12DT
10031 or higher
: 2 safety remote stations (each of them occupies
one station) (Scan mode: Synchronous mode)
: 10Mbps (LS = 0.22ms)
: 0 due to LS
1.5ms
: 10ms
: Input response time = 11.2ms, Output response
time = 10.4ms3
n) m) - 10
= ((SM n) 3 + ((SM
(SM ) 2 - ((SM
= ((10 1) 3 + ((10
- ((10 1) 1) - 10
= 80 [ms]
= 11.2 + 80 + 10.4
= 101.6 [ms]
10032 or higher
2 - ((SM
n) m) 2) +
n) m) - 10
1) 1) 2 + 0) 2
5
- 10
1
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