Rockwell Automation RECOMM-PBUS PROFIBUS Communications Module - Manual (Page 82)

7-8 PROFIBUS Communications Module
Figure 7.5 – Reading Fault 1 Time (Parameter 244) from the SP600 Drive
(DPI Port 0)
Confirms Par. Access Word 2 of the request
(DPI Port #)
Message
1000 hex = Read N20:10 Command 1
P
ar
. Access
W
ord
SLC Address Descr
iption
Value (he
x)
N10:12
N20:13
N20:12
N20:11
N10:10
N10:13
Reply
3
2
2
1
4
4
3
DPI Port 0 (DPI Host)
Not Used
Not Used
Confirms Par. Number of the request ("F4")
Transferring 16-bit parameter value ("1")
Parameter value high word*1
F4 hex = 244 dec (parameter 244)
0
0
0
518E
1B
N10:11
0
Parameter value low word*1
*Note 1: 1B518E hex = 1,790,350 decimal equates to 179.0350
hours (fixed decimal point)
10F4
10F4