Siemens EF 837 Series Spezifikationen PDF herunterladen (Seite 46)

S800 I/O Module LEDs Section 4 Operation

46 3BSE056248

S800 I/O Module LEDs

Figure 14 shows examples of front panels for different types of I/O modules. On the

front of all I/O modules there are at least three LEDs (FAULT, RUN and

WARNING) indicating the module status. Additionally some modules have LEDs

indicating OSP or PRIMARY. Each digital channel also has one LED indicating

current state (on/off). For more information see the tables below.

• F - The FAULT LED shall indicate when the I/O module detect a fatal error or

before first access after power up.

• R - The RUN LED shall indicate when the I/O module is operational.

Table 4. Common LEDs for Communication Interfaces in Redundant operation

Marking Color Description

PRIM(Primary) Yellow Indicates the primary unit in redundant

configuration. (LED is on in both single and

redundant configuration).

DUAL Yellow Indicates when unit is running in redundant

configuration.

Table 5. Special LEDs

Module Marking Color Description

CI858 Tools Yellow Indicates reception / transmission of data frames

on the PC Tool buss.

CI862 Com Error Yellow Indicates traffic.

CI856 TO Yellow Flashes at S100 I/O access time-outs.

1 2 ... 41 42 43 44 45 46 47 48 49 50 51 ... 67 68

Keine Kommentare

Siemens EF 837 Series Spezifikationen Seite 46