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ADC MDM-TEL

Modem

Document

MDM-TEL Application Note.doc

Page 4 of 16

Last reviewed: 03/07/2002

Local

Modem

IBM Compatible

Remote
Modem

PLC

3. Choose 9600 as the Maximum Port Speed:

4. Click on the Advanced Tab and then click on Change Default Preferences:

Содержание MDM-TEL

Страница 1: ...bleshooting a Modem Connection 3 Connecting two Direct Logic PLCs together through the MDM TEL modem 4 PLC Network Instructions It is our suggestion that you carefully follow this document first in at...

Страница 2: ...2 w D2 DSCBL w null modem null modem Windows Driver Configuration PLC Port 2 MODEM 15pin SVGA DB9 Male Male TXD 2 3 TXD RXD 3 2 RXD GND 7 5 GND RTS 5 7 RTS CTS 4 8 CTS PLC Port 2 MODEM RJ 12 DB9 Male...

Страница 3: ...IBM Compatible Remote Modem PLC Installing the Windows Modem Driver Install the standard 28800 baud modem driver in Windows to use with the ADC modem Here is the procedure for installing this driver 1...

Страница 4: ...L Application Note doc Page 4 of 16 Return to top 4 Last reviewed 03 07 2002 Local Modem IBM Compatible Remote Modem PLC 3 Choose 9600 as the Maximum Port Speed 4 Click on the Advanced Tab and then cl...

Страница 5: ...em IBM Compatible Remote Modem PLC 5 Make Port speed 9600 and choose None for Flow control 5 Click on Advanced and choose 8 Data bits None Parity and 1 Stop Bits Click OK until all dialog boxes are cl...

Страница 6: ...m Use the 9 pin serial cable to connect between the serial port of your PC and the ADC modem in order to download the configuration If using an ADC modem on both local and remote CPU s which is the be...

Страница 7: ...Last reviewed 03 07 2002 Local Modem IBM Compatible Remote Modem PLC 3 Set this page up as shown below then click on the Next button 4 Set this page up as shown below Be sure to disable Error Correct...

Страница 8: ...Modem Document MDM TEL Application Note doc Page 8 of 16 Return to top 8 Last reviewed 03 07 2002 Local Modem IBM Compatible Remote Modem PLC 5 Click on Write Configuration to the Modem to download th...

Страница 9: ...onfigured through DirectSOFT You must configure the DIP switches and selector switches for the proper setup on these modules Again follow the same parameters guidelines from this example and refer to...

Страница 10: ...L Application Note doc Page 10 of 16 Return to top 10 Last reviewed 03 07 2002 Local Modem IBM Compatible Remote Modem PLC 3 Set the port up as indicated below and then send the settings to the PLC by...

Страница 11: ...ne line On the PLC side you connect your cables as shown at the beginning of this document You will need to connect your modem to a phone line and establish the number extensions and delays between th...

Страница 12: ...this is required in your facility You may also need to add commas for time delays when appropriate One comma equals about one second 3 Choose the K sequence protocol and setup the time delays as shown...

Страница 13: ...re download the configuration to verify the correct setup The modem driver is not configured properly Consult the steps in this document to verify modem driver setup The wrong modem may be answering T...

Страница 14: ...cation to start transmitting data Here is an example wiring diagram You must make sure that you use the correct I O cards for this The output from the PLC to initiate the modem dialing requires either...

Страница 15: ...modem configuration will be very similar to the settings listed earlier in this document ADC Modem Configuration The remote modem configuration will be the same as before The local modem will differ o...

Страница 16: ...tion you are requesting and the remote PLC with which you are communicating You should write the code and setup the communication port is the same manner that you would for a direct connection between...