Instruction manual

5. RKC COMMUNICATION PROTOCOL
IMR01H02-E3
37
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Name Iden-
tifier
No. of
digits
Data range Factory set
value
Attri-
bute
CH
Manipulated
output value
1
O1 6 -5.0 to +105.0 % ----- RO ×
Cool-side
manipulated
output value
(This item does not
use in the MA901)
O2
Error code
2
ER 1 0 to 5 ----- RO −
DI status
3
L1 6 0 to 31 ----- RO −
Memory area
number selection
4
ZA 1 1 to 8 1 R/W −
Set value (SV) ! S1 6 Within input range. 0 or 0.0 R/W ×
1
For heat/cool control: Heat-side manipulated output value
2
Display the number of the error that occurred.
Example: When the adjusted data error and the A/D conversion error occur simultaneously,
the data is 2.
In addition, error contents identify error code displayed on the SV display of MA900/MA901.
Error contents: Adjusted data error, EEPROM error, A/D conversion error, Board configuration
error, Watchdog timer error
For the error contents, see the Instruction Manual (IMR01H01-E").
3
The RUN/STOP terminal and memory area transfer contact input (DI) terminal statuses are
converted to the corresponding decimal data, respectively and then are sent to the host computer.
Convert the decimal data sent from the controller to the corresponding binary data (bit image) to
confirm the status.
Bit number Input type Terminal status
b0 RUN/STOP terminal status
b1 DI1 terminal status
b2 DI2 terminal status 0: Open 1: Close
b3 DI4 terminal status
b4 DI SET terminal status
Example:
Bit images (Decimal number) (Binary number)
Open/Close status 18 = 1 0 0 1 0
Bit number b4b3b2b1b0
4
For selecting the memory area, a maximum time of 100 ms is required after selecting is made. If
polling is made within 100 ms after selecting is made, the data before selecting is made may be sent
to the host side depending on the timing.
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