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04/99 AWB 2700-1311 GB

The status information and its meaning are described

in the manuals for the individual Suconet stations

and local expansion modules.

Message byte

The message byte contains information about the

status of the PLC, image data relating to the

networked stations, the PLC’s start-up behaviour,

etc. Only read access to the message byte is

possible.

Table 16: Message status byte

For further information on message byte, refer to the

“Startup” chapter of the “Sucosoft S 40 user

interface” manual (AWB 2700-1305-GB).

For further information on message byte, refer to the

“PLC_Message“ function block description in the

manual “Language elements for

PS 4-150/-200/-300 and PS 416“

(AWB 2700-1306 GB).

Bit no. Code Meaning

0 ISA 1st cycle after start

1 IRE 1st cycle after pressing the reset button; set

for the duration of one cycle

2 IFO Static forcing active

3 REC Remaining cycle after a warm start. The PS

4-300 executes the remainder of the cycle

after a warm start.

4 ICS This bit indicates the type of restart for the

1st cycle: 1 = cold start, 0 = warm start

5 NKD_1 New data transfer to the on-board SBI

6 NKD_2 New data transfer to the SBI of the 1st local

expansion module (LE 4-501-BS1)

7 NKD_3 New data transfer to the SBI of the 2nd local

expansion module (LE 4-501-BS1)

H1311g.bk Seite 80 Freitag, 4. Juni 1999 1:12 13

Moeller PS 4-341-MM1 User Manual

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