MoTeC ESDL3 - Manual (Page 61)

MoTeC Appendices 57
* RS232 and general CAN communications update rate depends on how
frequently the data is sent from the device. Typically the update rate from an
M4, M48, M8 or M800 ECU is about 20 times per second using RS232 and
about 50 times per second for the M800 using CAN.