caseyswett
Member
Please Help
I have been fighting an issue. Currently a have a group of SLC504's that I work with that I have to dial into to program. I have been trying to connect locally via the RS232 port on the SLC504 but have had zero luck.
Currently the SLC504's are each connected to a SIXNET Industria Modem VT-MODEM that I can dial into and then I can connect to the units via RSLINX. Using DF1 and autoconfig settings after dialing in.
Each unit has a PV1000C that I can connect via a straight thru cable via the RS232 port on each of them. However, can't see the PLC I assume because of a lack of pass thru.
I have been trying to connect to the SLC504's directly using a NULL MODEM cable and a straight thru as I have heard of people having luck with either depending on their situation. Neither cable works or allows me to see anything with a serial connection from my laptop to the SLC.
What I don't get is why I can connect via the SIXNET phone modem and not directly using the same settings.
I have tried matching the baud, parity, stop bits and changing flow control from none to hardware. I have also tried changing the FIFO settings as well as disabling them.
On each setting change I try connecting with the DF1 driver and config the same as with the phone modem.
RS232 DF1 devices
COM 4
SLC-CH0/Micro/Panel View
Station ID 00
Baud 9600
Parity NONE
Stop Bits 1
Error Checking BCC
Protocol FULL DUPLEX
The settings above are the same as in the RSLOGIX PLC program. Node is 30 and the Station ID is 9 I believe. Again, I can see all of this when connected via the SIXNET modem, but not with a direct Serial Connection.
I have also gone as far a trying via a older gateway desktop via Windows 98. Again here can't connect via serial but can connect just fine through the phone modem.
The laptop which I typically use is a DELL D800 with built in seria port. I only tried the desktop to eliminate the chances that the com on the laptop didn't work as desired.
Does anyone have any suggestions? What am I missing? It has to be something so simple that I'm staring it in the face and don't even know it.
Thanks for the help!
Casey Swett
I have been fighting an issue. Currently a have a group of SLC504's that I work with that I have to dial into to program. I have been trying to connect locally via the RS232 port on the SLC504 but have had zero luck.
Currently the SLC504's are each connected to a SIXNET Industria Modem VT-MODEM that I can dial into and then I can connect to the units via RSLINX. Using DF1 and autoconfig settings after dialing in.
Each unit has a PV1000C that I can connect via a straight thru cable via the RS232 port on each of them. However, can't see the PLC I assume because of a lack of pass thru.
I have been trying to connect to the SLC504's directly using a NULL MODEM cable and a straight thru as I have heard of people having luck with either depending on their situation. Neither cable works or allows me to see anything with a serial connection from my laptop to the SLC.
What I don't get is why I can connect via the SIXNET phone modem and not directly using the same settings.
I have tried matching the baud, parity, stop bits and changing flow control from none to hardware. I have also tried changing the FIFO settings as well as disabling them.
On each setting change I try connecting with the DF1 driver and config the same as with the phone modem.
RS232 DF1 devices
COM 4
SLC-CH0/Micro/Panel View
Station ID 00
Baud 9600
Parity NONE
Stop Bits 1
Error Checking BCC
Protocol FULL DUPLEX
The settings above are the same as in the RSLOGIX PLC program. Node is 30 and the Station ID is 9 I believe. Again, I can see all of this when connected via the SIXNET modem, but not with a direct Serial Connection.
I have also gone as far a trying via a older gateway desktop via Windows 98. Again here can't connect via serial but can connect just fine through the phone modem.
The laptop which I typically use is a DELL D800 with built in seria port. I only tried the desktop to eliminate the chances that the com on the laptop didn't work as desired.
Does anyone have any suggestions? What am I missing? It has to be something so simple that I'm staring it in the face and don't even know it.
Thanks for the help!
Casey Swett