Siemens SIMATIC Field PG P4 Manual page 103

The parallel port LPT has the following pinout:
Pin No. Designation
1 / Strobe (CLK)
2 Data - Bit 0
3 Data - Bit 1
4 Data - Bit 2
5 Data - Bit 3
6 Data - Bit 4
7 Data - Bit 5
8 Data - Bit 6
9 Data - Bit 7
10 /ACK
11 BUSY
12 PE (PAPER END)
13 SELECT
14 / AUTO FEED
15 / ERROR
16 / INIT
17 / SELECT IN
18 - 25 GND
SIMATIC Field PG P4 Manual
A5E00180080-04
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25
Description
Data message
Data line 0
Data line 1
Data line 2
Data line 3
Data line 4
Data line 5
Data line 6
Data line 7
Acknowledge
Not busy
Paper end
Device selection
Automatic new line
Device error
Reset / Initialization
Printer selection
Ground
Hardware Information
1
14
Input /Output
Output (open collector)
Output (TTL level)
Output (TTL level)
Output (TTL level)
Output (TTL level)
Output (TTL level)
Output (TTL level)
Output (TTL level)
Output (TTL level)
Input (4,7 kW pull up)
Input (4,7 kW pull up)
Input (4,7 kW pull up)
Input (4,7 kW pull up)
Output (open collector)
Input (4,7 kW pull up)
Output (open collector)
Output (open collector)
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