Siemens DP, S7-300F-2 PN manual Moby U/D or RF300

Industry Automation and Drive Technologies - SCE

Additional indications

The displays indicate to the user the progress of a command. Error analyses are easy to perform.

Variable			Description
IM_busy	This bit is set when the IM processes a command. Normally, "IM_busy“ is inverted to "ready“.
	IM_busy is indicated by the IM by means of the cyclical word (refer to chapter "Cyclical Control
	Word between Master and MOBY IM“ under "IM_busy“). If processing takes place with the
	automatic command start repeat_command, this bit indicates the processing of a new MDS with
	the command that is to be executed.
command_rep_active	The IM is just executing a command repetition. The bit is set as a response to the control variable
	repeat_command. After init_run, FB45 first resets the command_rep_active; it is set again
	delayed since FB45 first transmits the MOBY commands to the IM.
number_MDS	MOBY U/D or RF300:
	The number of MDSs is indicated that are presently located in the transmission window.
	If more than 15 MDSs are in the field, the display number_MDS stops at 0F hex.
error_MOBY	The IM signaled this error. As a rule, this error is indicated also on the ERR LED on the IM
	channel display (refer to chapter "Error Indications and Error Search“).
error_FB	Error indication from FB45 (refer to chapter "Error Indications and Error Search“).
error_BUS	The transmission path between FB45 and the IM signals an error. As a rule, this is a PROFIBUS
	error (refer to chapter "Error Indications and Error Search“). This error is indicated by the system
	functions SFC 58/59.
version_MOBY	Display of the firmware version of the MOBY IM. The value entered here is updated after every IM
	power-up . It is ASCII encoded.
	Example:	DBB26	DBB27
		31 hex	30	→ Version 1.0
			hex
		"1“	"0“

Notes

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All other UDT 11 variables are for internal FB use only.

The user must not change them at all.

TIA Training Document	Page 50 of 65
Module E11
Status: 01/2010	Radio Frequency Identification (RFID) with SIMATIC S7-300F-2PN/DP and
RF180C