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2/3/2011 6:02 AM | |
Posts: 101 Rating: (11) |
Cable Wiring Schemes: Thanks, |
2/3/2011 8:11 AM | |
Posts: 5 Rating: (0) |
Thanks very much for your response. Configure 224XP Baud rate: 19200, start bit: 1, stop bit: 1, data: 8 fixed bit SM30 is 16#5 (port 0) Baud rate: 19200, start bit: 1, stop bit: 1, data: 8 fixed bit SM130 is 16#5 (port 1) FOX-301AR Baud rate: 19200, start bit: 1, stop bit: 1, data: 8 fixed bit First, I have try with port 0 and i receive the values of SMB2 is 255, SMB3 is 0 After that I try with port 1 and I receive the values of SMB3 is 0, SMB2 is also 255 The question is whySMB2 notequal to SMB3 when i change port. May be PLC error or cable, or FOX-301AR or anything else. case 1: port 0 connect to rs485 FOx-301 AR, port1 connect to PC by using PPI cable LD SM0.1 MOVB 16#09, SMB30 MOVB 9, VB200 MOVB 16#02, VB201 MOVB '0', VB202 MOVB '1', VB203 MOVB 'R', VB204 MOVB 'D', VB205 MOVB 'H', VB206 MOVB 'P', VB207 MOVB 'O', VB208 MOVB 16#03, VB209 ATCH INT_0, 8 XMT VB200, 0 ENI S Q0.0, 1 net 1: LD SM0.1 MOVD &VB300, VD4000 DTCH 25 net 2: LD M0.0 TON T33, 100 net 3: LD T33 ATCH INT_0, 8 XMT VB200, 0 R M0.0, 1 int 0_port 0 LD SM0.0 S Q0.1, 1 INCD VD4000 MOVB SMB2, *VD4000 S M0.0, 1 case 2: port1 connect to rs485 FOx-301 AR, port0 connect to PC by using PPI cable LD SM0.1 MOVB 16#09, SMB130 MOVB 9, VB200 MOVB 16#02, VB201 MOVB '0', VB202 MOVB '1', VB203 MOVB 'R', VB204 MOVB 'D', VB205 MOVB 'H', VB206 MOVB 'P', VB207 MOVB 'O', VB208 MOVB 16#03, VB209 ATCH INT_0, 25 XMT VB200, 0 ENI S Q0.0, 1 net 1: LD SM0.1 MOVD &VB300, VD4000 DTCH 8 net 2: LD M0.0 TON T33, 100 net 3: LD T33 ATCH INT_0, 25 XMT VB200, 0 R M0.0, 1 int 0_port 1 LD SM0.0 S Q0.1, 1 INCD VD4000 MOVB SMB3, *VD4000 S M0.0, 1 Attachment1219039931_0.pdf (130 Downloads) |
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