Allen-Bradley PowerFlex 20-COMM-D, Руководство пользователя

Страница: 43 / 149

Configuring the Scanner 4-5
Table 4.A Host Products using 16-bit Reference/Feedback & Datalinks
(1)
Table 4.B Host Products using 32-bit Reference/Feedback & Datalinks
10. Set the scan rate. (Click Help for more information.)
11. Click OK . If you changed any settings, a Scanner Applet asks if it is
OK to unmap the I/O. Click Yes to continue. The Edit I/O
Parameters dialog box closes and then the Scanner Module dialog
box (
Figure 4.3 ) reappears. You will map the I/O in the next section
in this chapter.
Data from I/O messages must be mapped in the scanner. This mapping
determines where a ladder logic program can find data that is passed
over the network. You must map both the Input I/O and the Output I/O.
Rx
Size Tx
Size Logic Command/
Status Reference/
Feedback (16-bit)
Datalinks (16-bit)
A
B C D
4 4
✔ ✔
8 8
✔ ✔ ✔
12 12
✔ ✔ ✔ ✔
16 16
✔ ✔ ✔ ✔ ✔
20 20
✔ ✔ ✔ ✔ ✔ ✔
(1)
PowerFlex 70 & 700 use 16-bit.
Rx
Size Tx
Size Logic Command/
Status Reference/
Feedback (32-bit)
Datalinks (32-bit)
A
B C D
8 8
✔ ✔
16 16
✔ ✔ ✔
24 24
✔ ✔ ✔ ✔
32 32
✔ ✔ ✔ ✔ ✔
40 40
✔ ✔ ✔ ✔ ✔ ✔
Data Exchange Rate to set
Polled Polled Rate
Change of State Heartbeat Rate
Cyclic Send Rate
Mapping the Drive Data in the Scanner
For: Refer to:
Mapping the Input I/O 4-6
Mapping the Output I/O 4-7