Parameterizing
9.2 Parameterizing the operator interface
SENTRON PAC4200
System Manual, 09/2009, A5E02316180B-02
165
"Protocol":
You set the communication protocol here:
● MODBUS RTU
● SEAbus
"Response time":
If the Power Monitoring Device communicates over the RS 485 bus with an older
MODBUS module from another manufacturer, it may be necessary to delay the response of
a slave to a request from the master. The response time corresponds to the set baud rate. At
baud rates ≥ 19200 bit/s, the response time corresponds to a character interval of at least
3.5 with regard to the configured baud rate.
Table 9- 3 Setting options
Setting Meaning
0 = Auto The device automatically sets a response time suitable to the baud rate. This is
the minimal response time.
1 ... 255 Response time in ms
If you change the baud rate to a value that does not suit the response time set, the program
sets the response time to "Auto".
Table 9- 4 Performance calculation
Baud rate Calculated response time
4800 baud At least 9 ms
9600 baud At least 5 ms
≥ 19,200 baud At least 3 ms
See also
Expansion modules (Page 163)
9.2.14 Configuring the SENTRON PAC 4DI/2DO expansion module
When the SENTRON PAC 4DI/2DO expansion module is mounted on the SENTRON PAC
Power Monitoring Device, you can make the configuration settings for the external digital
inputs and digital outputs on it.
To Next Page
Loading...