Festo Электромотор MTR-DCI - Manual (Page 74)

3. Installation
3-18
Festo P.BE-MTR-DCI-DN-EN en 1209a
3.6.3 Fieldbus bit rate and fieldbus length
Note
The maximum permitted length for fieldbus segments de-
pends on the bit rate used. You will find detailed informa-
tion in the manuals for your control system or bus inter-
face or DeviceNet specification.
• Note the maximum permitted segment length (cable
length without repeater) if you are connecting the MTR-
DCI to a fieldbus segment.
• Avoid branch lines.
Note
• Refer to the manuals for your control system or bus in-
terface in order to ascertain which T-adapter and maxim-
um branch line length are permitted for your controller.
• Also take into account the sum of the branch line lengths
when calculating the maximum permitted length of the
fieldbus cable.
Bit rate Maximum segment length
500 kbps 100 m
250 kBit/s 250 m
125 kBit/s 500 m
Tab. 3/9: Maximum length of fieldbus segments as a func-
tion of the bit rate
Information on setting the bit rate and further bus paramet-
ers on the control panel can be found in section 5.2.7.