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Increase process image size of S7-1200

Created by: WoodyWu at: 1/30/2020 7:01 AM (6 Replies)

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1/30/2020 7:01 AM	Rate (0)
WoodyWu Posts: 51 Rating: (0)	Hi everyone, How to modify the size of process image on S7-1200? As I known, I can modify the image size at option "Cycle" on S7-300. My S7-1200 is "6ES7 215-1HF40-0XB0". Firmware version is V4.2. Thanks. Attachment 1200.PNG (483 Downloads)
WoodyWu Posts: 51 Rating: (0)
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1/30/2020 7:09 AM	Rate (0)
ChristophD Grandmaster Joined: 5/12/2006 Last visit: 12/19/2025 Posts: 22816 Rating: (3073)	Hello, on S7-1200/S7-1500 the processimage size is as default the complete I/O which is supported from PLC. No need to set the size specific for this PLC types. Regards Christoph
	Last edited by: ChristophD at: 01/30/2020 07:09:26
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This contribution was helpful to 1 thankful Users Kahl

3/19/2021 9:30 AM	Rate (0)
moose Advanced Member Joined: 1/12/2011 Last visit: 11/19/2025 Posts: 65 Rating: (5)	Is there never a need for iw600:p with a S7-1200 CPU?

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3/19/2021 9:31 AM	Rate (0)
ChristophD Grandmaster Joined: 5/12/2006 Last visit: 12/19/2025 Posts: 22816 Rating: (3073)	correct, no need.

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This contribution was helpful to 1 thankful Users qwazee

3/19/2021 9:39 AM	Rate (0)
moose Advanced Member Joined: 1/12/2011 Last visit: 11/19/2025 Posts: 65 Rating: (5)	OK, tnx for your quick reply. gr.

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3/19/2021 4:31 PM	Rate (0)
0_Einstein Grandmaster-Expert Joined: 7/7/2010 Last visit: 12/23/2025 Posts: 16325 Rating: (2520)	What is on the other end providing input word 600 that is updating faster than scan time? If it is updating every 1-2msec, you can use IW600:P in a cyclic interrupt OB to read the periphery and accept data faster than scan time. But, it can quickly turn into a problem because doing even a little too much work (logic) in that cyclic interrupt OB can cause watchdog faults. moose Is there never a need for iw600:p with a S7-1200 CPU?
	science guy
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3/22/2021 9:31 AM	Rate (0)
moose Advanced Member Joined: 1/12/2011 Last visit: 11/19/2025 Posts: 65 Rating: (5)	99.99% of the time normal cyclustime is OK and fast enough. Tnx.

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