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S7-300 DP/PN CPU communicate with Industrial printer via Ethernet connection

Created by: yudian at: 7/1/2008 11:54 AM (5 Replies)

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7/1/2008 11:54 AM	Rate (0)
yudian Posts: 4 Rating: (0)	With S7-300 DP/PN CPU, is it possible to sendcommands (ASCII chars) to an industrial printer (imaje) via enthernet connection (TCP/IP)? How?
yudian Posts: 4 Rating: (0)
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7/1/2008 12:04 PM	Rate (0)
Elvis Posts: 17 Rating: (2)	As I know cpu 300 PN doesn't support standard TCP/IP protocol. They support open TCP.
Elvis Posts: 17 Rating: (2)
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7/1/2008 12:23 PM	Rate (0)
J_Bell Posts: 5822 Rating: (412)	Dear Elvis, would you please explain to me what you mean by "open TCP" and what is the difference to TCP/IP? I always thought the PN CPU is using TCP/IP as standard. Best regards J_Bell
J_Bell Posts: 5822 Rating: (412)
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7/1/2008 7:35 PM	Rate (0)
jklm Platinum Member Joined: 12/22/2006 Last visit: 1/25/2022 Posts: 1742 Rating: (309)	Hello, With the loadable FBs called TCON, TSEND, TRECV you can open a TCP/IP connection and send/receice "raw data" to and froma partner. By "raw data" I mean bytes contained in a databloc. These bytes could be characters to print. But I guess that You will also have to implement a kind of protocol (a kind of hanschake) between the CPU and printer via TCP messages, to command the printer. I hope that this protocol is not too complicated (see manual of the printer). Else this could be a time consuming challenge.
	Best regards jklm Suggestion was helpful? Feel free to rate it.
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7/2/2008 12:35 AM	Rate (0)
yudian Posts: 4 Rating: (0)	Dear EDR, Thanks for pointing to the possibledirection, will try when all hardware available (soon) and let you know the outcome. regards Yudian
yudian Posts: 4 Rating: (0)
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7/9/2008 10:18 AM	Rate (0)
yudian Posts: 4 Rating: (0)	Hello Got chance to test all hardware today.Actually the com works straight away after follow these steps: 1. Get PN CPU talk to PC via open TCP communication, to prove all Siemens part works okay.There area few similar and good topics discussed in the forum to help figure out this task. 2. Replace PC by the ethernet printer and configure the printer to match TCP settings at PLC end. Since the printeris not Siemens part, took a bit time to setup.The handcheck functionat printer side (send back what received) isverypoor.However fundamentally it works fine. END
yudian Posts: 4 Rating: (0)
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