Endress+Hauser WirelessHART Fieldgate SWG70

To Next Page

To Previous Page

WirelessHART Fieldgate SWG70 Modbus Interface

Endress + Hauser 117

Fig. 16-1: Mapping of Modbus registers Fieldgate SWG70

Refresh time Fieldgate SWG70 refreshes Modbus discrete inputs and input registers once every macro-

cycle. The length of the macrocycle depends on the number of WirelessHART devices in the

network, the response time of the devices and the number of parameters they transmit.

• In general, shorter refresh times can be attained by restricting the traffic over the network

to essential parameters only.

65535

Coils

(not supported

by Fieldgate)

Discrete Inputs

Input registers

Holding registers

(in Fieldgate, an RO image

of the input registers)

65536

100001

165536

300001

365536

400001

465536

Reference

address

65535

Endress+Hauser WirelessHART Fieldgate SWG70 - Page 117