Siemens manual Mode Register 1 Mode-REG1, writable, STARTSPC3, Exiting the Offline state, Eoi

Models: SPC3

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SPC3

PROFIBUS Interface Center

 

 

 

 

 

 

5.1.2 Mode Register 1 (Mode-REG1, writable):

Some control bits must be changed during operation. These control bits are combined in Mode-Register 1 and can be set independently of each other (Mode_Reg_S) or can be deleted independently of each other (Mode_Reg_R). Various addresses are used for setting and deleting. Log ‘1’ must be written to the bit position to be set or deleted.

Address

 

 

 

 

 

 

 

Bit Position

 

 

 

 

 

Designation

Control

 

7

 

6

 

5

 

4

3

 

2

 

1

 

0

 

Register

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

08H

 

 

 

 

 

Res_

 

EN_

User_

 

Go_

 

EOI

 

START_

Mode-Reg_S

 

 

 

 

 

 

 

User_WD

Change_

Leave_

 

Offline

 

 

 

SPC3

7..0

 

 

 

 

 

 

 

 

 

Cfg_

Master

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Puffer

 

 

 

 

 

 

 

 

09H

 

 

 

 

 

Res_

 

EN_

User_

 

Go_

 

EOI

 

START_

Mode-Reg_R

 

 

 

 

 

 

 

User_WD

Change_

Leave_

 

Offline

 

 

 

SPC3

7..0

 

 

 

 

 

 

 

 

 

Cfg_

Master

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Puffer

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Bit 0

 

START_SPC3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Exiting the Offline state

 

 

 

 

 

 

 

 

 

 

 

 

1 =

SPC3 exits offline and goes to passive-idle.In addition, the idle timer and

 

 

 

 

 

 

Wd timer are started and ‘Go_Offline = 0’ is set.

 

 

Bit 1

 

EOI

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

End of Interrupt

 

 

 

 

 

 

 

 

 

 

 

 

1 =

End of Interrupt: SPC3 switches the interrupt outputs to inactive and again

 

 

 

 

 

 

sets EOI to log.’0.’

 

 

 

 

 

 

 

 

Bit 2

 

Go_Offline

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Going into the offline state

 

 

 

 

 

 

 

 

 

 

 

1 =

After the current requests ends, SPC3 goes to the offline state and again

 

 

 

 

 

 

sets Go_Offline to log.’0.’

 

 

 

 

 

 

Bit 3

 

User_Leave_Master

 

 

 

 

 

 

 

 

 

 

 

 

 

Request to the DP_SM to go to ‘Wait_Prm.’

 

 

 

 

 

 

 

 

1 =

The user causes the DP_SM to go to ‘Wait_Prm’. After this action, SPC3

 

 

 

 

 

 

sets User_Leave_Master to log.’0.’

 

 

 

 

Bit 4

 

En_Change_Cfg_Puffer

 

 

 

 

 

 

 

 

 

 

 

 

 

Enabling buffer exchange (Cfg buffer for Read_Cfg buffer)

 

 

 

 

 

0 = With ‘User_Cfg_Data_Okay_Cmd,’ the Cfg buffermay not be exchanged for

 

 

 

 

 

 

the Read_Cfg buffer.

 

 

 

 

 

 

 

 

 

 

1 =

With ‘User_Cfg_Data_Okay_Cmd,’ the Cfg buffermust be exchanged for

 

 

 

 

 

 

the Read_Cfg buffer.

 

 

 

 

 

 

 

 

Bit 5

 

Res_User_Wd

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Resetting the User_WD_Timers

 

 

 

 

 

 

 

 

 

 

1 =

 

SPC3 again

 

sets the User_Wd_Timer

to the

parameterized value

 

 

 

 

 

 

‘User_Wd_Value15..0.

After this action, SPC3 sets Res_User_Wd to log.’0.’

Figure 5..2: Mode Register1 S and Mode Register1 R Bit7..0.(writable)

SPC3 Hardware Description

V1.3

Page 19

Copyright (C) Siemens AG 2003 All rights reserved.

 

2003/04

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Siemens manual Mode Register 1 Mode-REG1, writable, STARTSPC3, Exiting the Offline state, Eoi

SPC3 specifications

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