Diagnosis¶
Structure of the Diagnosis Block via CANOM_NODE_DIAG: CANOM_NODE_DIAG
| Byte Number | Description | Possible Values |
|---|---|---|
| 1 | Diagnosis byte, slot number | 31 = CI581-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 module 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) | 4) | |||||
| 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 | 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 | 0…7 | 46 | Voltage feedback on deactivated digital output 6) | Check terminals | |
| 4 | - | 31 | 2 | 0…7 | 47 | Short circuit at digital output 7) | 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 | 4 | 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 CI541-DP diagnosis block. |
| 2) | With “Device” the following allocation applies: 31 = module itself; 1..10 = decentralized communication interface module |
| 3) | With “Module” the following allocation applies: 31 = module itself Channel error: module type (1 = AI, 2 = DO, 3 = AO) |
| 4) | This message appears if external voltages at one or more terminals DO0..DO7 cause other digital outputs to be fed by that voltage (voltage feedback, description in Electrical Connection CI581-CN). All outputs of the digital output groups will be turned off for 5 seconds. The diagnosis message appears for the whole output group. |
| 5) | The voltage on digital outputs DO0..DO7 has overrun the process supply voltage UP3 (description in Electrical Connection CI581-CN). Diagnosis message appears for the whole module. |
| 6) | This message appears if the output of a channel DO0..DO7 is to be switched on while an external voltage is connected. In this case, start-up is disabled while the external voltage is connected. Otherwise, this could produce reverse voltage flowing from this output to other digital outputs. This diagnosis message appears for each channel. |
| 7) | Short circuit: After a short circuit has been detected, the output is deactivated for 100ms seconds. Subsequently, a new start-up will be executed. This diagnosis message appears for each channel. |