Burster 9180, Руководство пользователя

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Model 9180
burster
Digital Panelmeter
Page 4-24
Protocol ISO 1745
Format: 1 start bit, 7 data bits, 1 stop bit, parity even
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Transmitting a message to the device
A message from the master unit must consist of the following code sequence:
SOH D d STX C C X ............... X ETX BCC
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One SOH byte for the beginning of the message [ASCII 01].
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One byte for the significance 10 and one byte for the significance 1 of the addresses of the device
being transmitted to.
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One STX byte for text beginning [ASCII 02].
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Two command bytes according to the function table.
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For commands regarding parameter changes, a block of n-bytes for the numerical value
including the decimal point.
Function table
Command Function Function Type
DITEL ISO
V 0V Transmission of the min. memory contents
P 0P Transmission of the max. memory contents
T 0T Transmission of the TARE memory contents
(Offset in the case of thermometers)
D 0D Transmission of the display value
L1 L1 Transmission of the switching point value 1
L2 L2 Transmission of the switching point value 2
L3 L3 Transmission of the switching point value 3
L4 L4 Transmission of the switching point value 4
v 0v Deletion of the min. value memory
p 0p Deletion of the max. value memory
r 0r Deletion of the tare memory
t 0t Acceptance of the display value as tare
M1 M1 Change switching point 1
M2 M2 Change switching point 2
M3 M3 Change switching point 3
M4 M4 Change switching point 4
Change
Parameters
Instructions
Request
Data