Parameters

P775 Stop Bits

The number of bits between the data bits.

Primary Index

Communications Port

 

 

Values

Range: 1 or 2

 

 

 

1

*

Preset:

 

 

 

 

 

P778 Modem Available

Sets the MultiRanger to use an external modem..

Primary Index

Communications Port

0* No modem connected

Values

1Answer only

P779 Modem Inactivity Timeout

Sets the time that the unit will keep the modem connected with no activity.

Primary Index

Communications Port

 

 

Values

Range: 0-9999 seconds

 

 

 

0

*

No timeout

 

 

 

 

 

Related

P778 Modem Available

• P779 Modem Inactivity Timeout

 

 

 

 

 

To use this parameter, ensure that P778 (Modem Available) = 1. Ensure that the value is low enough to avoid unnecessary delays when an unexpected disconnect occurs but long enough to avoid timeout while you are still legitimately connected. This parameter value is ignored by the Modbus Master Drivers, as they automatically disconnect when done.

Hanging Up

If the line is idle and the P779 Modem Inactivity Timeout expires, then the modem is directed to hang up the line. Ensure that P779 is set longer than the standard polling time of the connected master device. 0 disables the inactivity timer.

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MultiRanger 100/200 – INSTRUCTION MANUAL

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Siemens 200 instruction manual P775 Stop Bits, P778 Modem Available, P779 Modem Inactivity Timeout