| 摘要 |
<p>The invention relates to a switchgear (7) comprising at least two modular functional units (9), each of which is provided with a communication-interfaced field device that is equipped with a terminal line (11) in order to communicate with a field bus link (17). In order to simplify wiring of said switchgear (7), a common bus module (12; 22; 23) is provided for coupling the communication-interfaced field devices (8) of the at least two modular functional units (9) to the field bus link (17). Said bus module (12; 22; 23) encompasses one respective separate device interface connection (16) for connecting each of the terminal lines (11) of the individual communication-interfaced field devices (8) to the bus module (12; 22; 23), a field bus interface connection (18) for connecting the field bus link (17) to the bus module (12; 22; 23), and one respective separate coupling channel (19) which is positioned between the device interface connection (16) and the field bus interface connection (18) and is provided with a repeater circuit (20) in order to couple each of the device interface connections (16) in a galvanically separated manner to the field bus interface connection (18).</p> |
