ABB SM3000 User Manual page 75

SM3000
Multipoint Videographic Recorder
Note. The parameters on this and the next two pages are displayed only if 'Implementation' (see page 72) is set to 'Modbus TCP
Client', i.e. the instrument is configured to act as a Modbus master on a Modbus TCP network.
IM/SM3000–EN Rev. L
Select the maximum number
connections permitted, min. 1, max. 9.
Set the poll rate in milliseconds – min. 0, max. 3600000.
Set the number of successive polls permitted to fail before the
data is marked as a failed input – min. 0, max. 4.
Set the timeout time in milliseconds for a single poll – min. 0,
max. 60000.
Note. If any RTU devices connected through a gateway are
polled, set a response time that is long enough to allow for the
normal turn around time from these devices. The configuration
allows for only one setting for all devices connected to the
network.
Select the comms analog input to hold the data from the
nominated slave device.
Select the communications protocol to be used by the
instrument to communicate with the nominated slave device:
None – comms analog channel unused
TCP – Modbus Transmission Control Protocol
RTU – access a Remote Terminal Unit (RTU) via Modbus
TCP gateway
Note. Displayed only if 'Protocol' is set to 'RTU'.
Enter the RTU address assigned to the remote unit (1 to 247).
Notes.

Displayed only if 'Protocol' is set to 'RTU'.

This setting is always required to access a RTU via
Ethernet.
Set the IP address for the Modbus TCP gateway required to
communicate with the RTU.
6 Configuration
of simultaneous TCP/IP
73