ProSoft Technology PTQ-104C - Manual (Page 87)

49TPTQ-104C ♦ 48TQuantum Platform Hot Standby Support
47TIEC 60870-5-104 Client
12TUser Manual
Example #2
 Stand-alone application scan time: 80 ms
 Data (state RAM + unlocated variables): 300 Kb
Note: In addition to the above times for system overhead, the PTQ-104C module may acquire from
100 ms to 300 ms of switch-over time. All configured data is to be updated as fast as the combined
asynchronous events occur based on the processor scan time, backplane transfer time, PTQ data
handling time and IEC 60870-5-104 bus cycle time. The IEC 60870-5-104 bus cycle time is based
on slave reaction time, sync time, baud rate and other bus delay times for a given number of
servers on the network.
ProSoft Technology, Inc. Page 87 of 136
March 4, 2013