Technical data

Table Of Contents
System Status Lists (SSL)
System Software for S7-300/400 System and Standard Functions - Volume 2/2
A5E00739858-01
33-39
33.22 SSL-ID W#16#xy74 - Status of the Module LEDs
Purpose
If you read the partial list SSL-ID W#16#xy74, with standard CPUs (if present) and
with the H CPUs, you obtain the status of the module LEDs.
If the H CPUs are in a non-redundant H mode, you obtain the LED status of the
CPU addressed. If the H CPUs are in the RUN-REDUNDANT mode, the LED
status of all redundant H CPUs is returned.
Header
The header of partial list SSL-ID W#16#xy74 is structured as follows:
Contents Meaning
SSL-ID The SSL-ID of the partial list extract
W#16#0174 Status of an LED.
You select the LED with the INDEX parameter.
INDEX LED ID (only relevant for SSL-ID W#16#0174)
W#16#0001: SF (group error)
W#16#0002: INTF (internal error)
W#16#0003: EXTF (external error)
W#16#0004: RUN
W#16#0005: STOP
W#16#0006: FRCE (force)
W#16#0007: CRST (cold restart)
W#16#0008: BAF (battery fault/overload,
short circuit of battery voltage on bus)
W#16#0009: USR (user-defined)
W#16#000A: USR1 (user-defined)
W#16#000B: BUS1F (bus error interface 1)
W#16#000C: BUS2F (bus error interface 2)
W#16#000D: REDF (redundancy error)
W#16#000E: MSTR (master)
W#16#000F: RACK0 (rack number 0)
W#16#0010: RACK1 (rack number 1)
W#16#0011: RACK2 (rack number 2)
W#16#0012: IFM1F (interface error interface module 1)
W#16#0013: IFM2F (interface error interface module 2)
LENTHDR W#16#0004: one data record is 2 words long (4 bytes)
N_DR Number of data records