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After a successful startup of the CPU and the FM 453, the following values have been set by OB 100:
SThe “Jog” mode with the operating parameter BP = 1 (value of speed step 1)
SOverride 100 %
SServo enable is set
SVelocity levels: 40 m/min (level 1) and 80 m/min (level 2)
You can monitor the status of the FM module in the main display or by selecting Test →Start-up in
the parameterization tool. You can open the parameterization tool screen by selecting SIMATIC 400
Station →Edit →Open Object, double clicking on the FM 453 object and finally clicking on button
Parameters in the “Properties” dialog.
To be able to monitor or set the bits in DB 100 used in the user program, you must start the “View and
Control Variables” tool. To do this, select your project in the SIMATIC Manager and then select
SIMATIC 400 Station →CPUxxx →S7 Program →Blocks. With a double click on the variables table
VAT1 in the “Blocks” directory, you open the “View and Control Variables” tool. Establish an online
connection via the menu Target System →Establish Connection to →CPU Configured (directly con-
nected CPU).
Enter the following bits in the column headed “Operand”:
SDBEX.EX1DIR_P (plus direction)
SDBEX.EX1.DIR_M (minus direction)
SDBEX.EX1.GO_P (plus travel)
SDBEX.EX1.GO_M (minus travel)
To start the axis (plus direction), enter “2#1” in the “Control Value” column in the line for bit
“DBEX.EX1.DIR_P” and activate the traverse motion by selecting Variables →Activate Control Val-
ues.
To end the movement, change the value of bit “DBEX.EX1.DIR_P” from “2#1” to 2#0 and terminate
the motion by selecting menu commands Variables →Activate Control Values.
To start the axis (minus direction), enter “2#1” in the “Control Value” column in the line for bit
“DBEX.EX1.DIR_M” and activate the traverse motion by selecting Variables →Activate Control Val-
ues.
To end the movement, change the value of bit “DBEX.EX1.DIR_M” from “2#1” to 2#0 and terminate
the motion by selecting menu commands Variables →Activate Control Values.
You can monitor the operands cyclically by selecting Variables →View.
You can update the operands once for monitoring by selecting Variables →Update Status Values.
For information about programming standard function blocks, please refer to Section 6 of the Manual.
Further examples
In the zEn17_02_FM453_EX project you will find other examples which you can use as a guide and
which you can adapt to your application.
Note
In normal operation you should turn on the alarm generation (valid for channels 1 to 3), alarm selec-
tion (valid for channels 1 to 3) and all monitors (per channel).
Alarm generation can be set in the dialog box “Properties −FM 453 −(R0/S5)” in the tab “Basic Para-
meters” (see section 5.2 in the Manual under “Parameterize FM 453”)
You can set monitoring (per channel), e.g. hardware monitoring MD20, software limit switch MD21/22
etc. with parameterize.
Please note that the data will again be transferred to FM 453 and to the CPU.
Diagnostics
Errors can occur as a result of incorrect operation, incorrect wiring, or contradictory parameter assign-
ments which the FM 453 displays with the LEDs “INTF”, “EXTF” and “STAT”
For a description of how to localize and remedy errors and messages of this type, please refer to Sec-
tion 11 of the Manual.
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