Skip to Content

Register Login

Industry Online Support

Technical Forum

Navigation

Migrating from a 318 to a 319

Created by: dangerous at: 8/17/2007 6:23 PM (2 Replies)

Rating (0)

Thanks 0

3 Entries

8/17/2007 6:23 PM	Rate (0)
dangerous Posts: 35 Rating: (1)	Hi, I have a function block which use the ENT instruction in a 318 CPU however it won't download to a 319 CPU, can anyone tell me what I can do to subtitute it for something 319 compatible. Please see snippet of code below.. //Set communication Fault in Serial Link Status DB. L #Normal_send_byte_source LAR1 L DBB [AR1,P#0.0] //Slave address L 8 /I OPN "ModbusErrData" L #PLINK //Link number ENT SLW 5 //*32 (32 bytes/link) +I SLW 3 LAR1 TAK SRD 16 //Remainder L 1 SLW L DBB [AR1,P#0.0] OW T DBB [AR1,P#0.0] SET S #YF[/code]
dangerous Posts: 35 Rating: (1)
Suggestion To thank Quote Answer

8/18/2007 11:26 AM	Rate (0)
Late Platinum Expert Joined: 1/7/2006 Last visit: 7/3/2023 Posts: 2705 Rating: (314)	Hi, The "ENT" function is used to shift ACCU2 to ACCU3 and ACCU3 to ACCU4, so you have to place the variable in a STATIC or TEMP and do so your calculation. The CPU318 is a CPU414 in a S7-300 casing, the CPU319 is a S7-300 and don't have a ACCU3 and ACCU.4.
	I hope that the answer will help, if you have still questions, don't hesitate to ask me. All the best, Late Never say never, think in solutions, not in trouble......
Suggestion To thank Quote Answer

8/20/2007 5:50 PM	Rate (0)
miami Platinum Expert Joined: 8/31/2005 Last visit: 9/14/2023 Posts: 2194 Rating: (322)	Make shure to read this FAQs: http://support.automation.siemens.com/WW/view/en/22867067 Run the CPU 318 Migration Check tool to scan your programm for compability

Suggestion To thank Quote Answer

|

Share this page:

Share this page on...

Follow us on