YOKOGAWA Power Series Plus IM 249x-COMM, Руководство по связи

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3. MODBUS Protocol
IM 249x-COMM
9
06 – Preset Single Register
Sets a single register. Cannot be used to change values that fill more
than one register. (e.g. PT ratio)
08 – Diagnostics
Only the loopback subroutine (Return Query Data) is supported. This
simply returns a response identical to the query.
16 – Preset Multiple Registers
Can set single or multiple registers. If this command is sent to a Maximum
or Minimum register, no data should be included with the query. The
Power Series Plus will simply reset the register(s) so that the next
measurement will become the maximum or minimum.
Register Table
All registers are 2 bytes in size. Shaded registers are for Yokogawa internal use only.
REGISTER NAME R / W UNITS FORMAT CONTENTS
1 (0000) VER R - Unsigned int Firmware Version Number * 100
2 (0001)
MODEL R - Unsigned int Model Code
12=V/V/V; 13=A/A/A;
14=V/A/Hz; 15=W/VAR/PF
3 (0002) CONN R - Unsigned int Terminal Connections
0=2Wire; 1=3Wire; 2=4Wire
4 (0003) VOLT R - Unsigned int Input Voltage Rating
0=120/150Volts; 1=240/300Volts
5 (0004) AMP R - Unsigned int Input Current Rating
0=1Amp;
1=5Amps
6 (0005) FREQ R - Unsigned int Input Frequency Rating
0=55Hz; 1=400Hz
7 (0006) ANOUT R - Unsigned int Analog Output Code
0=No Output; 1=0-1mA; 3=4-20mA
8 (0007)
AVG R/W - Unsigned int Rolling Average Setting
0~29
samples
9 (0008)
LL R/W - Unsigned int Line-Line Setting (Voltmeters Only)
0=Line-Neutral; 1=Line-Line
10 (0009)
LOCK R/W - Unsigned int Front Panel Lockout
0=unlocked; 1=locked
11 (000A) VARPOL R/W - Unsigned int Not yet implemented
12 (000B)
(4 bytes) PT R/W - IEEE float Potential Transformer Ratio
1.0:1 ~ 1250.0:1
14 (000D)
(4 bytes) CT R/W - IEEE float Current Transformer Ratio
1.0:1 ~ 5000.0:1
16 (000F)
Spare
17 (0010) Spare
18 (0011) Spare
19 (0012) Spare
20 (0013) Spare
21 (0014) Spare
22 (0015) OUT1 R/W
Channel
dependent
Hi & Lo: float Channel 1 Output Range Settings