Diagnosis

Structure of the Diagnosis Block via CANOM_NODE_DIAG Function Block CANOM_NODE_DIAG

Byte Number	Description	Possible Values
1	Diagnosis Byte, slot number	31 = CI582-CN (e. g. error at integrated 8 DI / 8 DO) 1 = 1st connected S500 I/O Module … 10 = 10th connected S500 I/O Module
2	Diagnosis Byte, module number	According to the I/O Bus specification passed on by modules to the fieldbus master
3	Diagnosis Byte, channel	According to the I/O Bus specification passed on by modules to the fieldbus master
4	Diagnosis Byte, error code	According to the I/O Bus specification Bit 7 and bit 6, coded error class 0 = E1 1 = E2 2 = E3 3 = E4 Bit 0 to Bit 5, coded error description
5	Diagnosis Byte, flags	According to the I/O-Bus specification Bit 7: 1 = coming error Bit 6: 1 = leaving error

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 4 Bit 6..7	-	Byte 1	Byte 2	Byte 3	Byte 4 Bit 0..5	CANopen® diagnosis block
Class	Interface	Device	Module	Channel	Error- Identifier	Error message		Remedy
	*1)	*2)	*3)
Module errors
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	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
3	-	31	31	31	45	Process voltage UP gone		Check process supply voltage
3	-	31/1…10	31	31	17	No communication with I/O device		Replace I/O module
3	-	1…10	31	31	32	Wrong I/O device type on socket		Replace I/O module / Check configuration
4	-	1…10	31	31	31	At least one module does not support failsafe function		Check modules and parameterization
4	-	31	31	31	45	Process voltage UP3 too low		Check process voltage
4	-	31	31	31	46	Voltage feedback on activated digital outputs *4)		Check terminals
4	-	31/1…10	31	31	34	No response during initialization of the I/O module		Replace I/O module
4	-	31	31	31	11	Process voltage UP3 too low		Check process supply voltage
4	-	31	31	31	45	Process voltage UP3 gone		Check process supply voltage
4	-	31	31	31	10	Voltage overflow on outputs (above UP3 level) *5)		Check terminals/ check process supply voltage
Channel error digital
4	-	31	2	8…15	46	Externally voltage detected at digital output DO0..DO7 *6)		Check terminals
4	-	31	4	0…7	46	Externally voltage detected at digital output DC0..DC7 *6)		Check terminals
4	-	31	2	0…7	47	Short circuit at digital output *7)		Check terminals

*Remarks:

	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 CI542-DP diagnosis block.
	With “Device” the following allocation applies: 31 = Module itself, 1..10 = Expansion module
	With “Module” the following allocation applies dependent of the master: Module error: 31 = Module itself Channel error: Module type (1 = AI, 2 = DO, 3 = AO)
	This message appears, if externally voltages at one or more terminals DC0..DC7 oder DO0..DO7 cause that other digital outputs are supplied through that voltage (voltage feedback, see Electrical Connection CANopenâ Bus Module CI582-CN). All outputs of the apply digital output groups will be turned off for 5 seconds. The diagnosis message appears for the whole output group.
	The voltage at digital outputs DC0..DC7 and accordingly DO0..DO7 has exceeded the process supply voltage UP3 (see Electrical Connection CANopenâ Bus Module CI582-CN). Diagnosis message appears for the whole module.
	This message appears, if the output of a channel DC0..DC7 or DO0..DO7 should be switched on while an externally voltage is connected. In this case the start up is disabled, as long as the externally voltage is connected. Otherwise this could produce reverse voltage from this output to other digital outputs. This diagnosis message appears per channel.
	Short circuit: After a detected short circuit, the output is deactivated for 100ms. Then a new start up will be executed. This diagnosis message appears per channel.