Hioki SM7810, Инструкция по эксплуатации, Страница: 28 / 69

4.5 Communication Methods
25
3. Measurement data format
The data format returned by the “
MTG
” and “
RDT?
” commands can be set to
any of the following three types by command:
(1) Basic format
Data is returned in channel order.
Fields are separated by a data separator (
,
).
a. Channel number
The channel number is set as a 1-byte number from 1 to 8.
b. Measured value
The measured value is set as an 11-byte exponent.
c. Status
The contact check and range exceeded results are set as numbers from 0 to 4. The re-
sults are allocated to bits 0 to 2 of the status, and their logical sum is output.
Bit 0: 0 (fixed)
Bit 1: Contact check error (automatic execution result)
Bit 2: Range exceeded
d. Comparison result
When comparative measurement is on, this field is set to the result (0 to 2).
0: High (The measured value was greater than the upper limit reference value.)
1: IN (The measured value fell within the range defined by the upper and lower limits.)
2: LOW (The measured value was less than the lower limit reference value.)
e. Delimiter
The output message delimiter can be specified with the “
DLM
” command.
1,±d.ddddE±dd,d,d,2,±d.ddddE±dd,d,d,
a b c d a b c d
3,±d.ddddE±dd,d,d,4,±d.ddddE±dd,d,d,
a b c d a b c d
5,±d.ddddE±dd,d,d,6,±d.ddddE±dd,d,d,
a b c d a b c d
7,±d.ddddE±dd,d,d,8,±d.ddddE±dd,d,d
a b c d a b c d
LF <EOI>
e
±d.ddddE±dd
d
: Number
When the range is exceeded, all numbers in the output data are set to 9 (for resistance
measurements) or 0 (for current measurements).
9.9999E+99
+0.0000E+00 Resistance measurement
Current measurement
A status of 0 indicates normal operation.
When comparative measurement is off, comparison results (d) are not added to the
output data.