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dd
is the least significant octet of the data payload for 32-bit payload (polling).
XX
is the message checksum, the exclusive-OR of all of the octets from the address
through the data bytes, inclusive.
>
is the end of message character, a close angle bracket character, an ASCII
3��
.
ℎ����
The registers are:
00 Magic Number
01 Mode
02 Net Address
03 LCD Contrast
04 Trip Level
05 Dead Time
06 Distance
The following is an example of polling unit 2 after an event.
The master sends:
The slave responds:
This is interpreted as follows:
The first message is returned to the master (00), a poll response (04), for sensor 1 (1), a lead
edge (0), at time 00989680, with checksum xx. The time is a decimal encoding of the item in
units of 100 nanoseconds, so this 1.0000000 seconds from the time synchronization.
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should be ��������
. Used internally to initialize and verify the
ℎ����
EEPROM.
00= net only, 01=fps, 02=m/s, 03=msec
01 to FE
Usually near 32(20
ℎ����
The input trip level in units of 26.85 millivolts.
The input dead time for debouncing, in units of 27.1 nanoseconds.
The spacing of the light curtains in units of 0.001 inches.
<0204000000000006>
<0004100989680xx>
<00043009959D0xx>
<00043009A9250xx>
<00041009B7CB0xx>
<0004000000000xx>
).
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