Control and status area
Section 5-3
65
IR n+2.00
Input data transferred
0: No input data has been transferred to the mapped PLC data
area(s) during the last I/O refresh.
1: Input data has been transferred to the mapped PLC data
area(s) during the last I/O refresh.
The Unit does not always transfer input data to the mapped
PLC data area(s). If the Unit cannot provide updated input
data during an I/O refresh, no data will be transferred. This will
typically occur if the fieldbus cycle time is larger than the PLC
cycle time, or if the DP communication has been inhibited.
IR n+2.01
Not used by C200HW-PRM21.
IR n+2.02
Auto_clear (PROFIBUS-DP status bit).
0: Not in Auto_clear mode. This bit is also cleared during a
database download or a P-DP H/W failure is detected (IR
n+2.06 is set).
1: The master branched into Auto_clear mode, because of a
remote node error.
The master will only branch into Auto_clear mode when this
has been enabled in the configuration (see 4-3-7, Bus
parameters). In Auto_clear mode, the network state bits
indicate Stop, and the DP-ERR LED is flashing. IR n+3 will
indicate more details about the cause of the error.
To recover from Auto_clear mode, the C200HW-PRM21 must
be restarted (Power OFF / ON or restart bit in AR01 / SR281).
IR n+2.03
No_data (PROFIBUS-DP status bit).
0: All remote nodes are in data exchange mode. This bit is also
cleared during a database download or when a P-DP H/W
failure is detected (IR n+2.06 is set).
1: At least one remote node is not in the data exchange mode or
reports a fatal error.
The DP-ERR LED is FLASHING to indicate this error. IR n+3
contains more details about the cause.
15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
0
IR n+3
Error number
Station address
15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
0
IR n+4
Message length (001~128)
Unit number (0 ~ F)
Содержание C200HW-PRM21
Страница 1: ...C200HW PRM21 PROFIBUS DP Master Unit OPERATION MANUAL Cat No W349 E2 2...
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Страница 5: ...C200HW PRM21 PROFIBUS DP Master Unit Operation Manual Produced May 2000...
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Страница 66: ...Debug mode Section 4 4 50...
Страница 98: ...Messages Section 6 4 82...
Страница 108: ...Maintenance Section 7 3 92...
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Страница 126: ...Authorised Distributor Cat No W349 E2 2 Note Specifications subject to change without notice Printed in the Netherlands...