PROFIBUS DP-Master

Dual-Port-Memory 46/315
In detail these bits have the following meaning:
Error type
MSK_PROFIBUS_APM_EXT_STA_CTRL_ERR
Explanation
CONTROL-ERROR:
This error is caused by incorrect parameterization.
MSK_PROFIBUS_APM_EXT_STA_ACLR_ERR
AUTO-CLEAR-ERROR:
The device stopped the communication to all slaves
and reached the auto-clear end state
MSK_PROFIBUS_APM_EXT_STA_NEXC_ERR
NON-EXCHANGE-ERROR:
At least one slave has not reached the data exchange
state and no process data are exchanged with it.
MSK_PROFIBUS_APM_EXT_STA_FATL_ERR
MSK_PROFIBUS_APM_EXT_STA_NRDY
MSK_PROFIBUS_APM_EXT_STA_TOUT
Table 15: Error Types in Global Bits
FATAL-ERROR:
Because of a severe bus error, no bus communication
is possible any more
Host-NOT-READY-NOTIFICATION:
Indicates if the host program has set its state to
operative or not. If the bit is set the host program
is not ready to communicate
TIMEOUT-ERROR:
The Device has detected an overstepped timeout
supervision time because of rejected PROFIBUS
telegrams. It's an indication for bus short circuits while
the master interrupts the communication. The number
of detected timeouts are fixed in the Time_out_cnt
variable. The bit will be set when the first timeout
was detected and will not be deleted any more.
• bDPM_state/ Master main state
The master main state represents the operation mode of the Profibus DP master stack. This
operation mode is defined in section
6.1.3”PROFIBUS_FSPMM_CMD_SET_MODE_REQ/CNF – Set a new Operation Mode” of
this document. Allowed operation modes are:
Operation mode
USIF_OFFLINE
USIF_STOP
USIF_CLEAR
Value
0x00
0x40
0x80
USIF_OPERATE
0xC0
Table 16: Operation Modes of the Profibus DP Master and their Values
Changes of the master main state are indicated by the
PROFIBUS_FSPMM_CMD_MODE_CHANGE_IND – Mode changed Indication, also see
section 0 for more information. If you want to change this state, you can accomplish this by
sending a PROFIBUS_FSPMM_CMD_SET_MODE_REQ/CNF – Set a new Operation
packet to the FSPMM task, also see section 6.1.3 of this document.
PROFIBUS DP-Master |
DOC061001API12EN | Revision 12 | English | 2010-12 | Released | Public © Hilscher, 2006-2010