R9EWTU
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: +81(6)6659-8201 Fax: +81(6)6659-8510 E-mail: [email protected]
EM-6224 Rev.9 P. 9 / 21
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SYSTEM OPERATIONS
System operations include resetting accumulated values and rebooting.
ADDR.
WORD
PARAMETER
8993
1
Reboot system
Write ‘10001’ to reboot the system. (Any other values can be written but invalid.)
8994
2
Setting Modbus register write protection passcode
Set a passcode for enabling/disabling writing in registers via Modbus.
0 : Cancel write protection (*)
1 to 999 999 999: The set value is used as the passcode
Write the passcode in the register address 8977 before setting ‘1’ in the address 8979 to deactivate the write
protection.
The value in this register is encrypted when it is read out. Only ‘0’ (Cancel write protection) is read out as it
is.
When a new passcode is written, the register address 8979 is immediately reset to ‘0’ so as to limit the next
write command in access.
8996
1
Ch. 1 Reset count
Resetting specific count values among the channel 1 counts by writing a bit pattern as shown below.
Resetting is not executed for the bits set to ‘0.’
15
Bit
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Current harmonic distortion, max.
Voltage harmonic distortion, max.
*
Average power, max. / min.
Average current, max. / min.
Frequency, max. / min.
Power factor, max. / min.
Power, max. / min.
Current, max. / min.
Voltage, max. / min.
Average power
Average current
Energy count per time unit
Totalized energy
*
Resetting voltage related values is available only at Ch. 1.
8997
1
Ch. 2 Reset count
8998
1
Ch. 3 Reset count
:
:
:
9003
1
Ch. 8 Reset count
9004
1
Ch. 9 Reset count (DI 1 Reset count)
With the R9WTU-ED16 module, resetting specific count values among the DI 1 counts by writing a bit pat-
tern as shown below.
Resetting is not executed for the bits set to ‘0.’
15
Bit
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Pulse count per time unit
Totalized pulse count
With the R9WTU-EP8 module, Ch. 9 bit pattern is identical to that for Ch. 1.
9005
1
Ch. 10 Reset count (DI 2 Reset count)
9006
1
Ch. 11 Reset count (DI 3 Reset count)
:
:
:
9011
1
Ch. 16 Reset count (DI 8 Reset count)
