JVL Industri Elektronik A/S - User Manual - Ethernet for MAC and MIS motors 47
3.4 EtherCAT® objects
3.4.2 Minimum cycle time (JVL Profile)
The minimum cycle time is the minimum amount of time between each cyclic request
(PDO) on the Ethernet.
If the module is mounted in MAC050-MAC141 it is possible to add a poll division factor
either in the EtherCAT® tab in Mactalk or manually in module register 8 (
Register 8 - Poll
division factor., page 230).
The positions 6-8 is only transferred if enabled, Register 6 - Setup bits, page 228.
If operating with values lower than those listed, data loss will occur.
* The minimum cycle times, is only valid if not sending any acyclic requests while in any
operating mode. MODULE registers can be appended as the last registers in the list,
at no extra timing cost. Motor register 35 shall be in the cyclic read list, as it is also
used internally.
No. of motor registers
transmitted in each
direction
Motor series
MAC050 to
MAC141
Motor series
MAC400 to
MAC4500
Motor series
MIS / MIL
1/1 4mS * 360µS * 360µS *
2/2 8mS * 395µS * 395µS *
3/3 12mS * 430µS * 430µS *
4/4 16mS * 465µS * 465µS *
5/5 20mS * 500µS * 500µS *
6/6 24mS * 535µS * 535µS *
7/7 28mS * 570µS * 570µS *
8/8 32mS * 605µS * 605µS *
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