Reading Of The Long Timer And Long Retentive Timer; Writing Of The Long Timer And Long Retentive Timer - Mitsubishi Electric MELSEC iQ-RJ71EN71 User Manual

■Reading of the long timer and long retentive timer

Note that the following items cannot be set for reading the long timer and long retentive timer.
• Long timer (contact)
• Long timer (coil)
• Long retentive timer (contact)
• Long retentive timer (coil)
When, however, the current value of the long timer or long retentive timer is set in units of four words, the contact and coil will
be read simultaneously.
Response data
1st word
2nd word
3rd word
4th word
As shown above, the long timer and long retentive timer use the data configuration of four words per device. Consequently,
specify the number of device points for a request data in units of four points.

■Writing of the long timer and long retentive timer

Note that the long timer and long retentive timer cannot be set.
Description
The current value is stored.
• b0: The value of the coil is stored.
• b1: The value of the contact is stored.
• b2 to b15: Used by the system.
Used by the system.
1.7 Communications Using MODBUS/TCP
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