CNI RM85x, User Manual

Page: 44 / 58

RM85x Hand-held Terminals User Manual
36
CNI Engineering S.r.l. 05-10-2007
4.1.15 Sample variable
This command commences sampling two variables in the terminal’s firmware.
See the appendices for details on the coding of these variables.
Byte Command Response
01 STX STX
02 Node Node
03 0x08 0x0 StatusBit
04 CmdSampleVar CmdSampleVar
05 0x00 0x00
06 Variable 1 code Variable 1 code
07 Variable 2 code Variable 2 code
08 CRC CRC
09 ETX ETX
Example:
To sample the two variables coded 0x04 and 0x05 in the terminal at node address 0.
Byte Command Response
01
0x02 (STX) 0x02 (STX)
02
0x00 (Node) 0x00 (Node)
03 0x08 0x0 0x0
(StatusBit)
04 0xa8 (CmdSampleVar) 0xa8 (CmdSampleVar)
05 0x00 0x00
06
0x04 (
Variable 1 code
) 0x04 (
Variable 1 code
)
07
0x05 (
Variable 2 code
) 0x05 (
Variable 2 code
)
08
0x5e (CRC) 0x56 (CRC)
09
0x03 (ETX) 0x03 (ETX)
4.1.16 Sample address
This command commences sampling two variable addresses in the terminal’s firmware at a specified
interval.
Example
Byte Command Response
01 0x02 (STX) 0x02 (STX)
02 0x00 (Node) 0x00 (Node)
03 0x08 0x0 0x08
04 0xb0 (CmdSampleMem) 0xb0 (CmdSampleMem)
05 High part of variable address 1 High part of variable address 1
06 Low part of variable address 1 Low part of variable address 1
07 High part of variable address 2 High part of variable address 2
08 Low part of variable address 2 CRC
09 High part of sampling interval
0x03 (ETX)
10 Low part of sampling interval
11
CRC
12
0x03 (ETX)