Settings - Max IEC Gateway

Gateway Configuration

Settings apply as soon as you save, without restarting the gateway. Only a change of a server's connection settings (enable/disable, port, ASDU sizes, serial line) restarts that one server; you are asked first if connected masters would have to reconnect. k, w and t0-t3 apply to open connections.

IEC 60870-5-104 (TCP)

Enabled

TCP Port

Max Connections

Allowed masters (IP addresses / networks)

Applies immediately (no restart): connected masters that are no longer allowed are disconnected. This computer (localhost) is always allowed.

IEC 60870-5-101 (Serial)

Enabled

COM Port

Baud Rate

Link Address

Link Mode

Link Addr Size

Master link address

Balanced mode

Parity

Stop bits

Command Options (shared 104/101)

Command Mode

CMD Act. Termination

CSE Act. Termination

Select timeout (s)

Select-before-operate: the execute must follow the select within this time (1-60 s). Applies to the next command.

ASDU Parameters (shared 104/101)

COT Size

ASDU Addr Size

IOA Size

Originator Addr

APCI Parameters (IEC 104 timeouts)

t0 – Connect (s)

t1 – Send (s)

t2 – Ack (s)

t3 – Test idle (s)

k – Max I-frames

w – Ack after

Time tags and clock synchronization

Time tags in local time (SU bit set in summer time); off = UTC

Mark time tags invalid (IV) until a master has synchronized the clock

Clock synchronization command (C_CS_NA_1)

Setting the clock needs the service's administrator rights (Windows) or CAP_SYS_TIME (Linux). Leave it off when the computer uses NTP.

Events and energy counters

Event buffer (events)

Events kept while no master is connected (oldest dropped when full). Changing it restarts the IEC 101 link only.

Periodic counter report (s)

Freeze and send all integrated totals every n seconds (0 = only on counter interrogation).

Historian Settings

Historian Enabled (record data point history)

Recording Interval

Retention Period (hours) Default: 72h (3 days). Max: 8760h (1 year)

Dashboard address (web)

HTTP port

HTTP only from this computer (use HTTPS from other computers)

HTTPS

HTTPS port

Certificate file (.pfx) on the gateway computer

Certificate password

Allowed networks for the dashboard

Applied without restarting the gateway; your browser is sent to the new address.

Configuration Import / Export

Export or import device and mapping configurations as JSON.

Clear existing devices & mappings before import

Also import the IEC/gateway settings from the file

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Max IEC Gateway
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