Siemens HydroRanger 200 Instruction Manual page 206

P775 Stop Bits
The number of bits between the data bits.
Primary Index
Values
P778 Modem Available
Sets the HydroRanger 200 to use an external modem..
Primary Index
Values
P779 Modem Inactivity Timeout
Sets the time that the unit will keep the modem connected with no activity.
Primary Index
Values
Related
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.
Page 196
Communications Port
Range: 1 or 2
1 * Preset:
Communications Port
0 * No modem connected
1 Answer only
Communications Port
Range: 0-9999 seconds
0 * No timeout
• P778 Modem Available
• P779 Modem Inactivity Timeout
HydroRanger 200 – INSTRUCTION MANUAL 7ML19985FC03