
26
6-5-7. Continuous transmission format
In “Communication Mode” on page 19, select “Continuous Transmission” to continuously send polling (0001) response data. No
checksum is added during continuous transmission.
HEX 0x06 0×30 0×31 0×30 0×30 0×30 0×31
0x2E
0x0D 0×0A
ASCII ACK
0
1
0
0
0
1
ST1
ST2
±
×
×
×
.
×
×
CR
LF
ID number
Command No.
Data
See “6-5-1. Polling (0001)” on page 22 for details about the data format.
Timing
s
Command cycle
w
PLC
Setting
command
Execution
command
Polling
TD-SC1 (485)
Reply data
Reply data
Response
sw
sw
sw
tdr
twc
tdr
tdr:
5000ms maximum command response
twc: 30ms minimum command interval
ATTENTION
The twc command interval value varies depending on the command type. Leave 30 ms for polling and setting commands. Leave
about 100 ms for calibration, setting memory and other commands that include operations.
6-5-8. Real-time value/hold value format
MSB
4-bit
Status
See table below
4-bit
Decimal point position
0: None / 1:0.0 / 2: 0.00 / 3: 0.000 / 4: 0.0000
4-bit
Reserved
0
4-bit
5th digit
BCD/binary
4-bit
4th digit
BCD/binary
4-bit
3rd digit
BCD/binary
4-bit
2nd digit
BCD/binary
LSB
4-bit
1st digit
BCD/binary
Status
Status
Bit 3
Bit 2
Bit 1
Bit 0
0
Plus (+)
BCD display
No input overload*
Real-time value
1
Minus (−)
Binary display
Input overload*
Hold value
*AD input/DA output, maximum display value
6. RS-485