Analog Outputs 0 To 20 Ma Or 4 To 20 Ma; Analog Inputs 0/4 To 20 Ma - Siemens PGC 302 Edition II Manual

SIMATIC modules
8 analog outputs
0 to 20 mA: 6ES5 470-4UA12
4 to 20 mA: 6ES5 470-4UC12
The chromatographs have two to four analog out-
puts as standard, e.g. for displaying chromato-
grams. Additional
with programs, e.g. for recording the trends
BASIC
of component results.
Technical data
If you require detailed technical data, refer to e.g. Cata-
log ST 54.1 SIMATIC S5.
Resolution
No-load voltage
Max. load
Short-circuit-proof
Permissible cable length
Slots required
1
2
3
4
5
6
7
8
9
1 0
1 1
1 2
1 3
1 4
1 5
1 6
1 7
1 8
1 9
2 0
2 1
2 2
2 3
2 4
2 5
2 6
2 7
2 8
2 9
3 0
3 1
3 2
3 3
3 4
3 5
3 6
3 7
3 8
3 9
4 0
4 1
4 2
16
outputs can be used
SIMATIC
10 bits
18 V
300 Ω
Yes
< 200 m
1
+ 24 V
G N D 2 4
Output 1
-
+
Output 7
+ -

8 analog inputs 0/4 to 20 mA

6ES5 460-4UA12
The analog inputs can be used to calculate process
signals with the results of the chromatograph or to
print them out together in a log.
Range submodules
Two range submodules are required for each group of four
inputs in addition to the basic module. All unused inputs
must be equipped with a range submodule! There are sub-
modules for voltages, currents and temperatures. Only the
following range submodules will be described here:
0 to 20 mA 6ES5 498-1AA41
4 to 20 mA 6ES5 498-1AA71 (four-wire!)
You can find the technical data of the other range sub-
modules in e.g. Catalog ST 54.1 SIMATIC S5.
NOTE:
The 4 to 20 mA submodule is also available as a two-wire
version. This is only suitable if the sensor is passive and ob-
tains its power supply via the 20-mA line. This is usually not
the case.
Setting of mode switches
There are two mode switches on the module. The fol-
lowing setting applies to the current measurement. It
may be necessary to set other modes when using other
range submodules.
Mode switch I
50 Hz mains frequency
60 Hz mains frequency
Mode switch II
1 means ON, 0 means OFF. To switch a function ON
you must press the switch at ON. This may be upper or
lower position depending on switch model and board
version. The print on the board is only valid!
Press the switches with a pointed object, but never with
a pencil! Pencils leave behind conductive powder.
IMPORTANT:
With the board -4UA13 the mode switch S II is
rotated 180 ° ! So the lower position is ON and
the pattern shown above must be reversed:
10010001.
01000000
00000000
10001001
3SIMATIC.CHP, Stand Dezember 22, 1999