Rockwell Automation 1400-SP PowerMonitor Software - Manual (Page 21)

Chapter 3
Installation
3–7
Modem Configuration Information
Modems used with computers running the Powermonitor Software must be
fully Hayes compatible.
If the modems are configured via their communications ports, the
Powermonitor Software will configure them automatically using a set of
default commands. These commands assume that a standard Hayes modem
is being used. If you are using a modem which requires a unique command
set to configure it, refer to Appendix B for instructions on creating a special
MODEM.CFG file for Powermonitor Software to use.
If the modems are configured via hardware DIP switches or a similar
method, configure them to the specifications on next page.
Modems should be configured as follows:
The modem located at the destination site must be configured for
“auto–answer” mode. The modem connected to the computer running the
Powermonitor Software must be configured for “originate” mode.
Both modems must also be configured as follows:
1. Force the RS–232C Data Terminal Ready lead true.
2. Result codes must be sent as numbers.
3. Result codes must be sent by the modem.
4. Echo characters while in command state.
5. Do not force Carrier Detect lead true.
6. Single line connection.
7. Enable modem command recognition.
8. 8 data bits per byte.
9. No parity.
10. 1 stop bit.
The modem must be Hayes compatible. If you are using a sophisticated or
high speed modem, some of the advanced features need to be disabled.
To use a Telebit 3000 modem, disable flow control, disable data compression
and specify CTS operation and delay. Re–configure modem command
register as shown below: (This is an example only.)
AT Z Reset Modem
AT &RO CTS follows RTS
AT S26=1 RTS to CTS Delay Interval
AT S50=6 9600 Baud per second (V.32)
AT S58=O Disable Flow Control
AT S190=O Disable Data Compression