AS Martem Data Concentrator TELEM-GW5
Akadeemia tee 21G Tel: +372 639 79 79 E-mail: martem@martem.ee
12618 Tallinn Fax: +379 639 79 80 www.martem.ee
Estonia
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Figure 10.3 .1 Configuration window with an advanced Port configuration tab
card
Configuration parameters of a port:
•
Protocol – Communication protocol used by all the devices of this port.
Each protocol name is accompanied with a symbol l”^” or ”
ν
” which
indicates whether the port is used for an uplink or a downlink channel. For
example, “Modbus
ν
” means that this port is used for downlink with
Modbus protocol.
•
Baud rate – Data communication rate
•
Parity – Use of parity bit for all the devices on this channel
•
Communication Mode – Makes it possible to choose between the
following handshaking options:
- No control
- RTS/CTS Control
- RTS Callout Request – a Request by the RTS signal to the offline
modem for calling out
•
Polling Delay – Delay between reception and the next query
•
Port Link Address – Link address of the device on uplink channels
•
IEC ASDU Address – ASDU address on uplink channels
•
Length of the ASDU Address – Length of the ASDU address in bytes on
uplink channels. Typically 2, possible values are 1 or 2
•
IEC Object Length – Length of the IEC object address in bytes on uplink
channels. Typically 2, possible values are 1, 2
More on the advance view:
•
Allow Routing – Allows routing of IEC 60870-5-101 protocol messages
between the upper and lower level channels
•
Up Protocol Subversion – Number of protocol subversion on uplink
channels
