HEADQUARTERS: 16-6, KUGAHARA 5-CHOME, OHTA-KU TOKYO
146-8515
JAPAN
PHONE: 03-3751-9799 (+81 3 3751 9799)
E-mail: [email protected]
MAR. 2020
Website:
https://www.rkcinst.co.jp/english/
The first edition: MAR. 2020 [IMQ00]
Company names and product names used in this manual are the trademarks or registered
trademarks of the respective companies.
MEMO
6.3 Communication Data List
Explanation of data map items
Identifier: Identifier for RKC communication
Data range (Read or Write range of the communication data)
Attribute (A method of how communication data items are read or
written when viewed from the host computer is described)
RO: Read only data
(Host computer
COM-KG)
RW: Read and Write data (Host computer
COM-KG)
Factory set value: Factory set value of communication data
Name Identifier
Attribute
Data range
Factory set value
Parameters dedicated for COM-KG
Maintenance mode setting
a, b
ZZ RW
0: Normal mode
1: Maintenance mode
0
Communication parameters dedicated for the maintenance mode (accessible only in the maintenance mode)
Protect setting
a
PZ
RW
0: OFF
1: Protect mode
(Set the Protect so that the COM-KG will not respond to the
communication in the RKC protocol communication.
After setting the Protect, the COM-KG will forcibly terminate
the maintenance mode and switch the mode to that set in the
Communication mode switch.)
0
Switching communication mode
CS
RW
0: Serial/Loader communication mode
0
Communication address of
COM-KG
a, c
SA
RW
0 to 99
99
ROM version of COM-KG
a
KG
RO
0x0000 to 0xFFFF
a
Data is not backed up.
b
Accessible only when Protect setting is set to “OFF”.
When the COM-KG is in the Protect mode, “Maintenance mode setting” is not accessible. You need to reapply power to the instrument to release
the Protect mode.
c
To prevent malfunction, make sure the device address on the instrument side and the communication address of COM-KG (Identifier [SA]) are not overlapped
with each other. When the communication address of the COM-KG is changed, the new setting will be valid immediately.
7. SPECIFICATIONS
USB communication function
Interface:
Based on USB Ver. 2.0
Communication speed: Full speed (12 Mbps)
Connection:
Connected by universal USB cable (Mini-B connector)
Power source method: Bus power (The power is supplied from the USB port on
the personal computer side)
Compatible OS:
Windows 7 */Windows 10 *
*32-bit/64-bit
Serial communication function
Interface:
Based on RS-485, EIA standard
Based on RS-422A, EIA standard
Connection method:
RS-485: 2-wire system, half-duplex multi-drop connection
RS-422A: 4-wire system, half-duplex multi-drop connection
Synchronous method: Half-duplex start-stop synchronous type
Communication speed: 2400 bps, 4800 bps, 9600 bps, 19200 bps, 38400 bps,
57600 bps, 115200 bps
Data bit configuration: Start bit: 1
Data bit: 7 or 8
Parity bit: Without, Odd or Even
Stop bit: 1 or 2
Protocol:
Protocol depends on application of the personal computer
side
Number of connecting controllers:
Maximum 31 controllers (RS-485/RS-422A)
Termination resistor:
Built-in termination resistor (120
)
General specifications
Power supply voltage: 5 VDC
5
(Supplied by USB bus cable)
The power supply function through the loader
communication is not available on the USB hub
(low power port)
Current consumption: 200 mA max. (when powered through loader
communication)
100 mA max. (when in serial communication mode)
Allowable ambient temperature range:
10 to
55
C
Allowable ambient humidity range:
5 to 95 %RH (Non condensing)
Absolute
humidity:
MAX.W.C
29.3
g/m
3
dry air at 101.3 kPa
Case material:
PC (Flame retardancy: UL94V-2)
Weight:
Approx. 50 g (Instrument only)
Most significant digit
Least significant digit
…………
(ASCII code data of 7 digits)
