Appendix B: Mechanical Specification
37 (48)
B.6
Assembly
The Anybus CompactCom B40 Modbus Serial and the connector board are mounted separately
on to the host application board. The connector board has to be secured using a screw, joining
FE (functional earth) on the connector board to FE on the host application board. The screw
holes of the Anybus CompactCom B40 Modbus Serial are not connected to FE, but to GND. If
suggested components are used, the Anybus CompactCom B40 Modbus Serial can be mounted
without screws in a low vibration environment, see
for more
information.
The Anybus CompactCom B40 Modbus Serial can either be connected to the application board
using headers, or soldered directly to the host application PCB.
Fig. 21
Suggested components
Header
Application interface
Samtec CLP-128-02-L-D (56 pin)
Network interface
Samtec CLP-126-02-L-D (52 pin)
Stand-off (M3)
Pemnet SMTSO-M3-4-ET
The screw standoffs are typically 4 mm tall. If the Anybus CompactCom B40 Modbus Serial and
connector board are to be soldered directly to the host application board, standoffs should be 2
mm tall. Outer diameter may be 6 mm max. The standoffs should not extend outside the screw
mount pads.
Recommended torque is 0.2 Nm. Locking paint can be used to secure the screws against
loosening.
Anybus
®
CompactCom
™
B40 Modbus Serial User Manual
SCM-1202-130 1.1 en-US