ProSoft Technology PS69-DPM User 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