The Siemens AS-I series analyser is a diagnostic instrument built for commissioning and troubleshooting AS-Interface (AS-i) networks — the two-wire actuator/sensor bus used throughout Siemens' automation range to link field devices back to a PLC. An analyser of this type is connected onto the AS-i bus to check network voltage, addressing, and telegram traffic, letting a maintenance engineer confirm the network is healthy before or during fault-finding, rather than swapping out field devices on suspicion.

Exact model variant, display type, and included cabling/adaptor set for this unit should be confirmed before ordering, since Siemens has offered several AS-i analyser generations. Supplied by Z&F Corporation — contact our technical sales team to confirm exact specification and compatibility with your AS-i installation when requesting a quote.