Catalog Numbers...
I just wanted to set this dead straight...
timothymajka said:
...Just because part number lists it as a 232 port does not mean that the terminal cannot be configured as 485.
The terminal cannot be configured for DH-485. There, I've said it!
timothymajka,
In the interest of you knowing better and other readers being surer...
The part number, 2711-T6C
16L1, does not "list" it as just a "232 port", which may be configured for different protocols. The "
16" denotes it is specifically a...
PanelView 600 COLOR TOUCH, WITH
DF1 COMMUNICATION & RS-232 PRINTER PORT
The communications port for this model terminal is fixed for the DF1 protocol. The port is physically an RS-232 port. It is labelled, as Ken pointed out, specifically as "RS-232 DF1". It cannot be reconfigured to use the DH-485 protocol.
For the PanelView 600 terminals that have one, the additional printer port is simply labelled "RS-232". This port can be used to connect a printer, obviously, and also to transfer applications, as Mickey kindly pointed out. However, you can only perform this transferring of applications on the following terminals, of which all come with the additional printer port...
Note: The highlighted number denotes the communications option provided.
2711-T6C
1L1 - Remote I/O, with additional printer port
2711-T6C
8L1 - DH+, with additional printer port
2711-T6C
10L1 - DeviceNet, with additional printer port
2711-T6C
15L1 - ControlNet, with additional printer port
2711-T6C
16L1 - DF1, with additional printer port
2711-T6C
20L1 - Ethernet, with additional printer port
The following PanelView 600 Standard terminals support the DH-485 protocol...
2711-T6C
2L1 - DH-485 AMP port and DH-485 RJ45 port, no additional printer port
2711-T6C
3L1 - DH-485 AMP port and DH-485 RJ45 port, with additional printer port
2711-T6C
5L1 - DH-485 RS-232 port, no additional printer port
2711-T6C
9L1 - DH-485 RS-232 port, with additional printer port
Of the two DH-485 models above, that have the additional printer port, they do
not support the transfer of applications using this port.
timothymajka said:
I have several machines running 485 out of the 232 port. Not using a blue hose either. The only way to talk to them is 485 with a UIC
"Blue Hose" would (should) never be connected to an RS-232 port. I don't think any of us in the know here would ever mistakenly think you may have been doing that? So I do not see the need to clarify that you are "Not using blue hose either". The fact that you have even mentioned Blue Hose with regard to an Allen Bradley RS-232 port would only demonstrate, to me, a certain level of ignorance with regard to this matter.
Note: I mean ignorance as in "a lack of understanding" and not as in "being stupid".
The DH-485 based terminals you are referring to (without providing Catalog Numbers), that have RS-232 ports, would undoubtedly have to be either of the available DH-485 (RS-232) terminals, namely 2711-XXX
5L1 or 2711-XXX
9L1. These DH-485 terminals, which use RS-232 ports, are likewise fixed to their specified communications protocol and cannot be configured for any other protocol.
However, the DH-485 (RS-232) terminals are not labelled with the "DH-485" protocol name, as the "DF1" terminals are. The "
5" models have just the communications port with no additional printer port and are labelled simply as "RS-232". The "
9" models have both ports and are labelled "RS-232 COMM/DOWNLOAD" for the communications port and "RS-232 PRINTER" for the additional port.
I'm hazarding a guess that you were using one of these fixed for DH-485 models and just seeing "RS-232" labelled on their ports, with no mention of a protocol? This would lead you to believe they are all just "RS-232" ports that can be configured to any protocol that supports this physical port.
It would not, or could not, have been the case, for a PanelView Standard.
So that begs another question...
Were you possibly using PanelView
Plus terminals, and not PanelView
Standard terminals?
PanelView Plus terminals have a multi-purpose RS-232 port that supports either DF1 Full Duplex or DH-485 through a serial connection for communication with controllers. They also support third party connections and printers.
Without the Catalog Numbers off the terminals in question this is all just conjecture, of course, but quite possible too.
Regards,
George
The "
16" terminal in question for this thread...
A "
5" model fixed for DH-485 (RS-232)...
A "
9" model fixed for DH-485 (RS-232)...
A PanelView Plus terminal with multi-purpose RS-232 port...