Interface Collection Mechanism - Emerson PACSystems RX3i User Manual

User Manual
GFK-2949E
Note:
5.9.3

Interface Collection Mechanism

Based on the Record Format in section 5.9.2, the following is the process for pushing points
into the EIS001:
• IF words [000] and [002] are non-zero, a point push is in operation is processing, or has
ended in an error.
• IF words [000] and [002] are both 0 a point push can start.
1. Fill the IEC 104 records into the table.
2. In word [002] place the number of records to be pushed (1 to 8).
3. In word [000] place the Number 1237.
4. In word [001] place a non-zero number, that is not the same as the contents of
• If words [000], [001], [002] are all -1 (65535), then a Point Push has been detected by
the EIS001 and is in process. NOTE: Point Push works over many Controller scans, so the
ladder logic can take up to three scans to complete.
Configuration of IEC-104 Server Parameter
The field ADSU in the above record format can be set to the Type of ADSUs required for point push
by using the ADSU number in the appropriate fields. Refer to ADSU Supported in General
.
Interrogation
status word 92. This is the trigger for the Point Push operation. NOTE: this word is
an unsigned integer, so you can simply ADD_UINT 1 to the value in the status word,
and if 0 add again.
Chapter 5
Dec 2020
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