Specifications

Direct Data Interchange with the IP 240 IP 240
Fig. 11-1. Flowchart for ”Read Data from the IP 240” (Continued)
End
no
no
yes
Error detected?
Data not yet available in transfer
buffer?
ERR=1?
yes
Read out data
DFRT=0?
1
Write new job number
Enable interrupts
Write job number 40
H
yes
no
DFRT=0?
Reset communication. Write job number 40
H
Job number for reading error
codes
Read out data Read out error codes.
Read status register
Read status register
yes
no
AFRT=0?
2
Read status register
Write job number 01
H
11-6 EWA 4NEB 811 6120-02a