R3-NM3
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-8330 Rev.3 P. 9 / 9
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MAIN / SUB SWITCHING CONTROL
Address : 01025 = 0
Communication Status
Start
Main Lost
Main Restored
Switching by Host
Address : 01025 = 1
R3 main network
(main/sub switching control)
Address : 01025 = 0
Address : 01025 = 1
R3 sub network
(main/sub switching control)
(1)
(2)
(3)
(4)
(5)
1) When the main/sub switching control for both main and sub network is set to ‘0,’ all contact outputs are off, and analog
output modules output -15%.
2) When the main’s setting is switched to ‘1,’ the output modules are in control of the main host device.
3) When a loss of communication is detected in the main network, the output signal is held for the preset time period. (Timer
is programmable with the PC Configurator Software, R3CON.) After the time has been elapsed, the output control is
switched from the main to the sub network. Be sure to set an appropriate output signal to the sub network and switch the
sub’s setting to ‘1’ before such switching occurs.
4) The output modules’ control does not automatically switched back to the main’s when the main network is restored if the
main’s setting is ‘0.’ Be sure to switch the setting back to ‘1’ before the communication is restored.
5) When both the main and the sub network modules are in communication, the output can be switched without delay.
