DP/PA couplers

Product picture

• Implements the transition between PROFIBUS DP and PROFIBUS PA
• Modular expansion
• Ex version available
• Non-Ex version available

• The DP/PA link is formed by the IM 157 interface module and one or more DP/PA couplers (Ex and non-Ex versions). All components of the DP/PA link are interconnected through S7 backplane bus connectors.
• Ex and non-Ex versions of the DP/PA link are also possible by combining the IM 157 with Ex and non-Ex versions of the DP/PA coupler.
• This modular system can be expanded to up to 5 PA lines.
• The overall mounting depth is max. 130 mm, the height is 125 mm. The width of the IM 157 is 80 mm. The total width of the DP/PA link depends on the number of DP/PA couplers used.
• Connection to PROFIBUS-DP only at the IM 157 through 9-pin Sub-D connector. The PROFIBUS-DP interfaces of the DP/PA couplers used in the DP/PA link have no function.
• Redundancy mode possible on the S7-400H.