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FG_F6_MODBUS_EN_01 / 2020-06-17
Status and real time measures reading
For using this function, it is important to:
—
Having done a start on the instrument before (“End of cycle” bit on in the relay status)
—
Not having done a reset of the FIFO
•
Standard access
Example of reading the entire status and real time measures structure:
Master
Slave
—
Make a
Read N*words
request of 13 words at the
0010h
address.
On network:
01
03
00
30
00
0D
84
00
01
Slave address
03
Function number (Read N*words)
00 30
Word address (Real time result)
00 0D
Number of words to read
84 00
CRC
—
Answer to the request:
On network:
01
03
1A
02
00
00
00
01
00
21
80
FF
FF
00
00
00
00
F8
2A
00
00
08
CF
00
00
70
17
00
00
AE
95
01
Slave address
03
Function number (Read N*words)
1A
Number of read bytes
02 00
Word 1: read 0002h (prog. N°3)
00 00
Word 2: read 0000h (num. of res. in FIFO)
01 00
Word 3: read 0001h (type test = leak)
21 80
Word 4: read 8021h (status)
FF FF
Word 5: read FFFFh (step code)
00 00
Word 6 & 7: read 00000000h
(pressure value = 0)
00 00
F8 2A
Word 8 & 9: read 00002AF8h
(pressure unit = 11000
→ bar)
00 00
08 CF
Word 10 & 11: read 000008CFh
(leak value = 53000
→ 53)
00 00
70 17
Word 12 & 13: read 00001770h
(leak unit = 6000
→ Pascal)
00 00
AE 95
CRC
Содержание F6 Profinet Series
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