Technical data 
  15.11 Typical reaction times 
SIMOCODE pro 
System Manual, 05/2019, A5E40507475002A/RS-AD/004 
367 
15.11.3  Typical reaction times of the Modbus RTU device series 
 
 
 
 
 
Basic unit: 
Thermistor: 
Set delay time 
400 ms 
5 ms  10 ms 
- 
Current measurement: 
Voltage measurement: 
Active power / cos phi: 
300 ms 
300 ms 
1000 ms 
300 ms ... 600 ms + set delay 
- 
- 
- 
Ground-fault module / external 
100 ms + set delay  - 
Digital modules: 
•  24 V DC version 
•  110 V - 240 V AC/DC version 
 
15 ms + delay time 
50 ms + delay time 
 
25 ms 
25 ms 
1) Based upon a typical hardware set-up: Basic unit + current measuring module + 
2 expansion modules 
Reaction time = inputs conversion time + internal processing time + outputs conversion time 
Example: 
You wish to switch a relay output of the basic unit via PROFIBUS when the "remote" bit is 
set: 
Reaction time = 5 ms + 5 ms + 10 ms = 20 ms. 
For the data from and to the PLC, you must also add the times for bus execution time, IM/CP 
cycles, and PLC-CPU cycle. 
You will find the corresponding information in the device descriptions
.