FIELD: radio engineering, communication.
SUBSTANCE: two-wire process input-output (IO) transmitter powered by a two-wire process loop and configured as a single transmitter. The transmitter includes a gateway module (100) and at least one local IO module (200). The gateway module (100) includes a first circuit configured to wholly power the gateway module (100, 401) from the two-wire process loop, a second circuit configured to communicate via the two-wire process loop, and a third circuit configured to communicate with the at least one IO module (200) via a local bus (700) separated from the two-wire process loop. The at least one local IO module (200) includes a first circuit configured to wholly power the respective local IO module (200, 402, 403, 404) from the two-wire process loop, a second circuit to communicate at least with one gateway module via the local bus (700), and a third circuit configured to interact with at least one IO field device.
EFFECT: simple device and high efficiency thereof.
22 cl, 6 dwg
