PCE Instruments PCE-P18 - Page 24

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Readout of n-registers (code 03h)
Example 1. Readout of 2 registers, starting with the register address
1D4Dh (7501) float (32-bit), (register values 25.68, 20.25.)
Request:
Device
address
Function
Register address Number of registers
CRC check-
sum
B1 B0 B1 B0
01h 03h 1Dh 4Dh 00h 02h 5270h
Response:
Table 5
Device
ad-
dress
Fun-
ction
Num-
ber of
bytes
Value from the register
1DB0 (7501)
Value from the register
1DB1 (7502)
CRC
check-
sum
B3 B2 B1 B0 B3 B2 B1 B0
01h 03h 08h 41h CDh 70h A4h 41h A2h 00h 00h 83D0h
Table 6
Single register writing (code 06h)
Example 2. Writing the value 78h (120) to the register FA1h (4001)
Request:
Device
address
Function
Register address Register value
CRC
checksum
B1 B0 B1 B0
01h 06h 0Fh A1h 00h 78h DB1Eh
Table 7
Response:
Device
address
Function
Register address Register value
CRC
checksum
B1 B0 B1 B0
01h 06h 0Fh A1h 00h 78h DB1Eh
Table 8