Block Transfer Commands
23
4.6
Read Gross Value
The Read Gross Value block write command is used to read a gross value from the indicator. Table 4-14 shows
the format of the command:
Table 4-14. Block Write Command 8: Read Gross Value
Command Number
Specifies the Read Gross Value command number, 8.
Channel Number
Specifies the channel number for the gross value being read. Specify channel 1 for IQ plus 510/710 indicators.
Block read command 8 returns a 2-word gross value to the PLC controller. If the block write command failed, the
command number returned in word 0 is set negative (-8). Table 4-15 shows the format of the block read
command.
Table 4-15. Block Read Command 8: Read Gross Value
Word
Bit Number
Word Contents
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
Command Number (8)
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
Channel Number (1)
Word
Bit Number
Word Contents
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
Command Number (8)
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
Channel Number (1)
2
v31
Gross Value
v16
Gross Value (MSW)
3
v15
v00
Gross Value (LSW)
DISCONTINUED
