WAGO I/O SYSTEM 750 750-671, Руководство пользователя

Страница: 117 / 256

750-671 [Steppercontroller] • 117
Advanced Diagnostics
WAGO-I/O-SYSTEM 750
I/O Modules
2.1.2.14 Advanced Diagnostics
The diagnostics commands allow internal module information to be accessed.
This includes:

Error status of the device,

Variables and status bits,

Password,

Configuration table and

Position table.
The commands are elucidated in the appendix in chapter 3.1.4.5, „Diagnostics
Commands“.
2.1.2.14.1 Internal Status Variables
The module is provided with internal status variable that can be read out using
the mailbox command DIAG_RD_VAR. These variables can also be acquired
automatically by a data recorder.
The variable number determines the source to be read from.
Variable number Source
0… 0x1000: defined variables are read (see also 3.6 "Internal Status
Variables")
0x1000…0x1100: defined bits 0 … 0x100 are read (see also 3.4 "Bit field for I/O
driver")
The status variables are elucidated in the appendix in section 3.6, „Internal
Status Variables“.
2.1.2.14.2 Data Recorder
The data recorder allows two internal variable to be recorded in a definable
time frame for later analysis. 500 values are recorded each time.
The configuration values Trace_Var1 and Trace_Var2 contain the index for
the variables to be recorded (see "Internal Status Variables"). The
configuration value Trace_MsecCycleTime denotes the scan (cycle) time in
ms.
Configuration value Meaning
Trace_Var1 Index for first recording variable
Trace_Var2 Index for second recording variable
Trace_MsecCycleTime Scan time in ms