Siemens PGC 302 Edition II - Connection of Local Message Printer; Connection of Line Recorder, Use of Analog Outputs

Connection of local message printer
A local printer can be connected to the interface SER.1
in order to print results and/or alarms.
The driver UNIDRV1 must be loaded for the interface
SER
.
1. DIP switches must be set on the PCPU
-
2. This
is described under ChromLAN
with TTY
.
Your printer manual describes the interface assignment
of your printer and how it is set. The printer must sat-
isfy the following requirements:
Protocol X-ON/X-OFF
Transmission rate 9600 baud
Active TTY interface, i.e. the printer provides the
20-mA current loop
Epson- or
IBM
-compatible
Printer with RS232 interface
If the printer only has an RS232 interface, the PCPU-2
interface SER.1 can be switched over to RS232. The
printer must be connected directly to the PCPU-2. The
cable length must be less than 15 m. A DIP switch must
be set on the PCPU-2. This is described under Chrom-
LAN with TTY.
Printer with Centronics interface
The message printer can be connected to the Centronics
interface of the control unit. It only prints if the control
unit is switched on.
Connection of line recorder,
use of analog outputs
Four analog outputs are present as standard. They are
connected to the terminal board, plug X12.
Terminal number
Output Ground
Analog output Channel
1
2
3
4
A
B
11
12
13
14
10
10
15
15
SIMATIC
modules are required for further analog out-
puts (4 to 20 mA). To connect these modules, refer in
this register to
SIMATIC
modules: Analog outputs or in
the register External wiring diagrams.
Setting of 0 to 20 mA or 4 to 20 mA
The four standard analog outputs can be converted from
4 to 20 mA to 0 to 20 mA. Plug-in jumpers must be
repositioned on interface module 3. This is described in
the register Function description of electronics.
0
XK1
9
10
30
39
66
57
48
74
29
19
20
XK1
RxD+
RxD -
TxD+
TxD -
TxD+
TxD -
RxD+
RxD -
21
20
23
22
Printer
TTY aktive
PGC 302
Interface SER.1
Terminal board
Receiver
TransmitterReceiver
Transmitter
Terminal
GND
TxD
RxD
CTS
GND
RxD
TxD
CTS
1
3
2
5
Printer
RS 232
PGC 302
Interface SER.1
PCPU-2
Terminal
Installation of chromatograph
6
3INSTALL.CHP, Stand Dezember 22, 1999