33
2018/03
7.3.2
Register 0x1131: Modbus Connection Timeout
This register defines after which time of inactivity a Modbus connection is closed through a Discon-
nect.
Behavior of the BUS LED
In case of a connection timeout the BUS LED's behavior is as follows:
7.3.3
Register 0x113C and 0x113D: Restore Modbus-Connection-Parameters
Registers 0x113C and 0x113D serve for resetting the parameter-register 0x1120 and 0x1130 to
0x113B to the default settings.
Follow the following steps in order to reset the parameter register:
Write 0x6C6F to register 0×113C.
To activate the reset of the registers, write 0x6164 ("load") within 30 seconds in register 0x113D.
Both registers can also be written with one single request using the function codes FC16 and FC23.
The service resets the parameters without saving them. This can be achieved by using a following
"save" service.
7.3.4
Register 0x113E and 0x113F: Save Modbus-Connection-Parameters
Registers 0x113E and 0x113F are used for the non-volatile saving of parameters in registers 0x1120
and 0x1130 to 0x113B.
Follow the following steps in order to store the parameters:
Write 0x7361 to register 0×113E.
To activate the reset of the registers, write 0x7665 ("save") within 30 seconds in register 0x113F.
Both registers can also be written with one single request using the function codes FC16 and FC23.
7.3.5
Error behavior (watchdog)
Behavior of outputs
In case of a failure of the Modbus communication, the outputs’ behavior is as follows, depending on
the defined time for the watchdog (register 0x1120, s.
):
Watchdog = 0 ms (default)
Outputs hold the momentary value in case of an error at
Watchdog > 0 ms
Outputs switch to
after the watchdog time has expired (setting in register 0×1120).
Connection Timeout
BUS LED
time-out
green, flashing
NOTE
Setting the outputs to predefined substitute values is not possible in Modbus TCP. Even-
tually parameterized substitute values will not be used.
Содержание 6814035
Страница 1: ...Your Global Automation Partner TBEN L EN1 FEN20 EN1 Spanner Modules Getting Started Guide ...
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Страница 31: ...29 2018 03 6 3 3 EtherNet IP Status and Input Data Mapping Fig 21 Web server EtherNet IP data mapping ...
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Страница 55: ...53 2018 03 The spanner can now be used as in the sample above Fig 57 RSLogix FEN20 EN1 in the project ...
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