Honeywell 2MLL-PMEA, User Manual, Page: 21 / 185

Chapter 2 Specifications
6 Pnet I/F Module 2MLL-PSRA, 2MLL-PMEA, 2MLL-PMEB User
’s Guide
R240
Honeywell January 2019
2.4 Cable Specifications
2.4.1 Cable Specifications
The cable uses shielded twisted-pair wires. Table 2.4.1 and Table 2.4.2 show the maximum
transmission distance according to cable type and speed cable type.
Cable characteristic Type A Type B
Impedance
135~160Ω(freq. 3~20MHz) 100~130Ω(freq. > 100kHz)
Capacity < 30 pF/m < 60 pF/m
Resistance < 110
Ω
-
Conductor Area > 0.34 mm 2 (22 AWG) > 0.22 mm 2 (24 AWG)
[Table 2.4.1] Cable specification
Baud Rate
(Kbit/s)
9.6 19.2 31.25 45.45 93.75 187.5 500 1500 3000 6000 12000
Cable Type A 1200 1200 1200 1200 1200 1200 400 200 100 100 100
Cable Type B 1200 1200 1200 1200 1200 600 200 70 - - -
[Table 2.4.2] Communication distance by cable and baud rate
Remark
1) The profibus standard defines two types of bus cables, but it is usually recommended to use a
type. Please contact the cable manufacturer for details.
2) Awg is a numbering scheme that indicates the size of the wire.