Megmeet MTC-08-NT, Руководство пользователя

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7
compensation error
≤
2
℃
Thermal resistance Input range
±
0.5
％
Isolation
The sampling channel is isolated from the power supply,
the sampling channel is isolated from the output, and
no isolation between channels
Note : 1. Through the appropriate input type selection Settings, two kinds of data can be
obtained:
℃
and
℉
.
2. Standard for thermocouple and thermal resistance:
K, J, E, N, T, R, S, BIEC 60584-1-1995
PT100
IEC60751 - AM2-1995
JPT100 JIS C1604-1997
Cu100, Cu50 JJG 229-1998
1.5 Buffer description
MTC-08-NT and the main module exchange information through the buffer (BFM), using Modbus
or MCbus. The cache that reads and writes properties can use MODBUS or MCBUS instructions to
write and read the contents of any cell in the BFM region. If the reserved cell is read, it will get a
value of 0. Save mark as Y represents the use of parameter save function, can be written to flash,
mark as N means can not be written to flash. The content of the BFM unit is as follows:
1. Channel operation monitoring.
2. Channel feature setting.
3. Control function setting.
4. Multi-step function setting.
5. Alarm function setting.
6. Litre/temperature limit setting.
7. Save and set BFM parameters.
8. The other.
1.5.1 Channel operation monitoring
The channel operation monitoring content of the buffer zone (BFM) of MTC-08-NT is shown in
Table 1-5
Table 1-5 MTC-08-NT buffer (BFM) channel operation monitoring
BFM
Contents Remarks
nat
ure
Sa
ve
CH1/CH5 CH2/CH6 CH3/CH7 CH4/CH8
#701/#705 #702/#706 #703/#707 #704/#708 Measured value
（
PV
）
*1
Units: 0.1
℃
and 0.1
℉
R N
#709/#713 #710/#714 #711/#715 #712/#716
Heat side control
output (MV) * 2
The default value:
0.0% (percentage
show
）
R N
#717/#721 #718/#722 #719/#723 #720/#724
More paragraphs of
the currently executing
period control * 3
Default value: 0.0%
(expressed as a
percentage)
R N
#725/#729 #726/#730 #727/#731 #728/#732
Multi-step control
current execution
segment * 3
Default value
：
0
Range:0~8
R N
#733
Output state of
refrigeration end *4
Default value
：
0 R N
#735 Error status word * 5 Default value
：
0 R N