Rockwell-automation 2706-LV2P_LV2R_LV4P_LV4R DL40 PLUS USER MANUAL Uživatelský manuál Strana 12

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Overview of the DL40 Plus 1–2
Publication 2706-6.1
RS-485/RS-232 Communications
Both the Remote I/O and Parallel Port versions have RS-485 and
RS-232 ports. You can configure these ports for Programmer, DL
Slave or Open Protocol communications (see table below). Port
settings are modified through the Ports menu in the Offline
Programming software or the Onboard Editor. You select a
communication option under the Port Use submenu.
The RS-232 port always communicates with the Offline
Programming Software regardless of the configured mode. Open
Protocol or DL Slave operation can occur on either the RS-232 or
RS-485 port.
If the RS-485 port is configured for Open protocol, you cannot
configure the RS-232 port for the same protocol. Instead, an
information message reports an invalid port configuration.
Con urat ons
escr pt on
Plus Port
Communication/Printing Options
Con
fig
urat
i
ons
D
escr
i
pt
i
on
DL40
Plus
Port
Programmer Open Protocol Slave Printing
O
ffline
Pro
g
rammin
g
RS–485
1
O
ffline
Pro
g
rammin
g
and Serial Printing
RS–232
R
S-2
3
2 O
ffline
Pro
g
rammin
g
RS–485
2
R
S-2
3
2 O
ffline
Pro
g
rammin
g
and RS-485 Message Triggering
RS–232
3
R
S-2
3
2 O
ffline
Pro
g
rammin
g
RS–485
3
R
S-2
3
2 O
ffline
Pro
g
rammin
g
RS-485 Slave Communications
RS–232
R
S-485 O
ffline
Pro
g
rammin
g
RS–485
4
R
S-485 O
ffline
Pro
g
rammin
g
RS-232 Message Triggering
RS–232
R
S-485 S
la
v
e
Communication
s
RS–485
5
R
S-485 S
la
v
e
Communication
s
RS-232 Message Triggering
RS–232
R
S-485 O
ffline
Pro
g
rammin
g
RS–485
6
R
S-485 O
ffline
Pro
g
rammin
g
RS-232 Slave Communications
RS–232
R
S-485 M
e
ss
a
g
e
Tri
gg
erin
g
RS–485
7
R
S-485 M
e
ss
a
g
e
Tri
gg
erin
g
RS-232 Slave Communications
RS–232
Note: Open protocol is a serial ASCII based format for triggering
messages stored in the DL40 Plus displays. Open protocol supports
message triggers with or without variable data over the RS-232 or
RS-485 serial ports.
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