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CP341 Modbus Function block inbuilt error?

Created by: Techy at: 3/28/2007 6:47 PM (2 Replies)

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3/28/2007 6:47 PM	Rate (0)
Techy Posts: 86 Rating: (2)	Hello All, I noticed something very accidently. I have a S7 300 system with CP341 card. In the cross reference table the output Q0.0 is shown as being read by FB80 (modbus slave 341 FB)& FB7(P-RCV_RK) . Both these are S7 blocks used for modbus communication. The cross reference table displays the N/W 6 of the FB80, but as its protected , so I am not able to view it. Now I am not aware why should the blocks read Q0.0 & is this going to cause any system disturbance as I have obviously used Q0.0 as real Ouput. Anybody with clues on this?? Thanks, Techy
Techy Posts: 86 Rating: (2)
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3/30/2007 10:04 AM	Rate (1)
Simaticus Posts: 262 Rating: (24)	Hi Techy, the mentioned Q0.0 is only a base to build a pointer, it is NOT really used. Good luck
Simaticus Posts: 262 Rating: (24)
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3/30/2007 2:26 PM	Rate (0)
Techy Posts: 86 Rating: (2)	Simaticus Thanks, saves me from unnecessary worry. Regards, Techy
Techy Posts: 86 Rating: (2)
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