ProSoft Technology PS69-DPM - Manual (Page 63)

PS69-DPM ♦ CompactLogix or MicroLogix Platform Contents
PROFIBUS DPV1 Master User Manual
ProSoft Technology, Inc. Page 63 of 130
October 1, 2014
Global State Field
The 64 byte Global State Field is available to the user program via the input area of the
master module. This field contains status information of the PROFIBUS-DP system. It
always begins at byte offset 8 of the input area. The input area mapping of the Global State
Field is shown in the following table.
Byte Offset Structure member Data Type Signification Explanation
8 Global_bits BOOL GLOBAL-BITS Global error bits, for a detailed
description of each bit and its
meaning see table below
9 DPM_State SINT PROFIBUS-DP
Master State Main state of the PROFIBUS-DP
Master system
00hex: OFFLINE
40hex: STOP
80hex: CLEAR
C0hex: OPERATE
10 Err_rem_adr SINT Error Source 0 ... 125 Error detected with a
Slave device
255 Error with Master.
11 Err_event SINT Error Event Error number, use the Err_rem_adr
value to determine if the error
occurred with a connected slave or
the Master itself. See error
numbers in table below.
12 to 13 Bus_err_cnt INT Bus Error Counter Number of major bus errors.
14 to 15 Time_out_cnt INT Time Out Counter Number of bus time outs.
16 to 23 Reserved[8] SINT(8) Reserved Reserved 8 Bytes
24 to 39 Sl_cfg[128] BOOL(128) Slave Configuration
Bit Array
If the Sl_cfg bit of the
corresponding slave is logical "1"
the slave is configured in the
master, and serviced in its states.
"0" the slave is not configured in
the master
40 to 55 Sl_state[128] BOOL(128) Slave State Bit
Array If the Sl_state bit of the
corresponding slave station is
logical "1" the slave and the master
are exchanging their I/O data. "0"
the slave and the master are not
exchanging their I/O data. The
values in variable Sl_state are only
valid, if the master runs the main
state OPERATE
56 to 71 Sl_diag[128] BOOL(128) Slave Diagnostic Bit
Array If the Sl_diag bit of the
corresponding slave station is
logical "1" latest received slave
diagnostic data are available in the
internal diagnostic buffer. This data
can be read by the user with a
message. "0" since the last
diagnostic buffer read access of
the HOST, no values were change
in this buffer