Diagnosis

In cases of short circuit or overload, the digital outputs are turned off. The modules performs reactivation automatically. Thus an acknowledgement of the errors is not necessary. The error message is stored via the LED.

E1..E4	d1	d2	d3	d4	Identifier 000..063	AC500-Display	<− Display in
Class	Comp	Dev	Mod	Ch	Err	PS501 PLC Browser
Byte 6 Bit 6..7	-	Byte 3	Byte 4	Byte 5	Byte 6 Bit 0..5	ETHCAT Diagnosis block
Class	Interface	Device	Module	Channel	Error identifier	Error message		Remedy
	1)	2)	3)	4)
Module error
3	-	31	31	31	19	Checksum error in the I/O module		Replace I/O module
3	-	31	31	31	3	Timeout in the I/O module
3	-	31	31	31	40	Different hard-/firmware versions in the module
3	-	31	31	31	43	Internal error in the module
3	-	31	31	31	36	Internal data exchange failure
3	-	31	31	31	20	Slave-to-Slave malfunction		Check configuration
3	-	31	31	31	41	Distributed Clock malfunction		Check configuration
3	-	31	31	31	9	Overflow diagnosis buffer		Restart
3	-	31	31	31	26	Parameter error		Check master
3	-	31	31	31	11	Process voltage UP too low		Check process supply voltage UP
4	-	31	31	31	45	Process voltage UP3 too low		Check process voltage
4	-	31	31	31	34	No response during initialization of the I/O module		Replace I/O module
4	-	31	31	31	46	Voltage feedback on activated digital outputs 4)		Check terminals
Channel error digital
4	-	31	2	0..7	46	Voltage feedback on deactivated digital output 5)		Check terminals
4	-	31	2	0..7	47	Short circuit at digital output		Check terminals
Channel error analog
4	-	31	1	0..3	48	Analog value overflow or broken wire at an analog input		Check value or check terminals
4	-	31	1	0..3	7	Analog value underflow at an analog input		Check value
4	-	31	1	0..3	47	Short circuit at an analog input		Check terminals
4	-	31	3	0..1	48	Analog value overflow at an analog output		Check output value
4	-	31	3	0..1	7	Analog value underflow at an analog output		Check output value

Remarks:

1)	In AC500 the following interface identifier applies: “-” = Diagnosis via bus-specific function blocks; 0 … 4 or 10 = Position of the Communication Module;14 = I/O bus; 31 = Module itself The identifier is not contained in the CI511-ETHCAT diagnosis block.
2)	With “Device” the following allocation applies: 31 = Module itself or ADR = Hardware address (e. g. of the DC551)
3)	With “Module” the following allocation applies dependent of the master: 31 = Module itself (Module error) or Module type (1=AI, 2=DO, 3=AO; channel error)
4)	Diagnosis message appears for the whole output group and not per channel. The message occurs if the output channel is already active.
5)	Diagnosis message appears per channel. The message occurs if the output channel is not active.