Table of Contents
Advertisement
■ SYSTEM OPERATIONS
System operations include switching the tariff or resetting energy counts, and rebooting.
ADDR.
WORD
PARAMETER
5329
1
Deactivate Modbus register writing protection
Writing a preset passcode in this register deactivates the writing protection via Modbus.
When the Modbus passcode set in this register matches the preset one, setting '1' or '2' in the address 4945
becomes available to enable writing in Modbus registers.
Reading out the register value is not possible. It reads always '-1' regardless of the code setting.
After writing is complete, be sure to set a value other than the passcode ('0' is recommended) to activate the
writing protection again.
5330
1
Modbus register access setting
0 : Write disable (*)
1 : Write enable
2 : Write enable the count values
Other : Write disable
This setting is erased when the power supply to the unit is removed. It always starts with '0' (Write disable)
when the power supply is turned on. Set '1' or '2' before starting writing at other registers.
In order to write a count value (e.g. active energy), set '2' at this register address. When it is set, the unit stops
counting so that a new count value can be written in the register address. Be careful to use '2' setting because
no counting will be performed if the unit remains with this setting.
When the Modbus register writing protection is enabled, this register setting cannot be changed from '0' to '1' or
'2' unless a correct security code is set in the address 4943.
5331
1
Reboot system
Write '10001' to reboot the system. (Any other values can be written but invalid.)
5332
1
Backup / restore setting
20002 : Backup the present setting
30003 : Restore the device with the backup setting data
The register is automatically set to '0' when the procedure is complete after one of these values is written at this
address. If another value is written before '0' has been set, the former procedure ends indefinitely.
5334
2
Modbus register writing protection passcode
Setting a passcode to control writing registers via Modbus.
1 to 999 999 999
0 : Cancel writing protection (*)
The Modbus passcode must be set to the address 4943 before setting '1' or '2' in the address 4945 to deactivate
the writing protection.
The value in this register is encrypted when it is read out. Only '0' (Cancel protection) is read out as it is.
When a new code is set in this register, the address 4945 is immediately reset to '0' so that a next command will
be already limited in access.
5336
1
Loop test (Circuit 1)
Measuring is stopped when '1' is set in this address. Then any value can be written in measurement value reg-
isters (1 through 87) for loop test purposes.
Modbus register access setting (4945) must be separately set to Write Enable mode.
Measuring is restarted when '0' is set in this address.
5337
1
Switch tariff (Circuit 2)
Switching tariff for Circuit 2. Same as with the address 5329.
5338
1
Reset energy count (Circuit 2)
Resetting energy count for Circuit 2. Same as with the address 5330.
5339
1
Loop test (Circuit 2)
Turning Circuit 2 to the loop test mode. Same as the address 5336.
(*) Factory setting
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: +81(6)6659-8201 Fax: +81(6)6659-8510 E-mail: info@m-system.co.jp
R7EWTU
EM-7818 Rev.2 P. 8 / 18
Advertisement
Table of Contents
