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• PROFIsafe_F_Addr_Diagnostic_Upstream

PROFIsafe_F_Addr_Diagnostic_Upstream

Type	Function block
Description	The function block is used to diagnose upstream F-connections. The FB can be used as an alternative to the corresponding F-diagnostic variables F_ADDR_[nnnnn]_ACK_REQ_DEV (acknowledgement required) or FD_ADDR_[nnnnn]_PASS_OUT_DEV. (For the variables, nnnnn corresponds to the F-address.) The FB reads the output interface data of the local F-Device instance and shows them as 16 bit value at its output formal parameter F_Diag_Status. This way, a required acknowledgement can be indicated. Via the input formal parameter F_Diag_Control, the 16 bit input interface data of the local F-Device instance can be written and thus controlled. This way, acknowledging of diagnostic messages is possible. The FB can only be used in the user program if no F-diagnostic variables are parameterized in the Safety PLC (observe the section "Notes" below). The function block is activated by a rising edge Activate = FALSE > TRUE. If an error occurs during the execution of the function block, Error is set to TRUE. The DiagCode output indicates the current FB status.
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Notes	Important: The use of the FB described here and the corresponding system variables for F-diagnostics are mutually exclusive! The function block can only be used in the safety-related application program if no F- diagnostic variables are parameterized in the Safety PLC. This applies regardless of the protocol used. As soon as one PROFIsafe F-diagnostic function block is activated, the use of the diagnostic system variables is blocked and they can no longer be used, even if the function block is deactivated again. In order to be able to use the diagnostic system variables again, the function blocks must be deactivated and the user program must be rewritten onto the controller. If at least one system variable has been parameterized for F-diagnostics and a function block is active at the same time, the function block goes into the error state. An error code is output at DiagCode and the function block remains in the error state until the user program is reloaded onto the controller. At the FB, no F-address of the upstream F-Device needs to be specified as the FB always knows the F-Device instance assigned to it. The reason is that there is only one instance of the local F-Device configured in the Safety PLC, whose F-address can be re-parameterized at runtime. Function blocks of this type have to be instantiated. The instance name of the function block has to be declared in the 'Variables' table of the POU where the FB is going to be used. The instance name must be unique within the POU.
Parameters	Input Activate Short description Value Edge-controlled input for initializing and activating the function block. Data type: BOOL Initial value: FALSE FALSE: Function block is inactive. Edge FALSE > TRUE: Function block is activated and the F-address set in the local F-Device instance is displayed. If the local F-Device is not parameterized, the value 0x0000 is shown. The other inputs are then evaluated and the outputs are switching accordingly. F_Diag_Control Short description Value Input bit field (16 bits) for controlling the interface data of the local F-Device instance. Data type: WORD Initial value: 0x0000 The value TRUE at bit position x means that the corresponding diagnostic acknowledgement is triggered. The meaning of the bit positions are described in the table below. In the following table, the value nnnnn represents the value in F_Address_Out. Bit pos. x Corresponding system variable Meaning/name in the PROFIsafe profile Bit 0 reserved reserved Bit 1 FD_ADDR_[nnnnn]_PASS_OUT_DEV FV_activated_DS For input devices the value TRUE indicates that the device is delivering fail-safe values ("0") as input values. For output devices the value TRUE indicates that each output channel is set to fail-safe values. For combined input/output devices the combination applies accordingly. Bit 2 FD_ADDR_[nnnnn]_IPAR_OK_DEV iPar_OK_DS. The value TRUE indicates that the F-Device (its specific device application) has new iParameter values assigned. Bit 3 FD_ADDR_[nnnnn]_CHF_ACK_REQ_DEV ChF_Ack_Req_DS: F_Passivation = 1: fault recognized by any signal channel of an F-Device/Module via qualifier (is cleared and can be acknowledged). Bit 4 FD_ADDR_[nnnnn]_DEVICE_FAULT_DEV Device_Fault_DS: F_Passivation = 0: Fault recognized by the specific device application. Bits 5 to 15 reserved reserved Outputs Ready Short description Value Output for signaling "Function block activated/not activated". Data type: BOOL FALSE: Function block is not activated. TRUE: Function block is activated. If the FB initialization was successful, the F-address of the local F-Device is shown at F_Address_Out. F_Address_Out Short description Value Output for displaying the F-address of the upstream F-connection (local F-Device instance). This address was parameterized in the project or reprogrammed from the application. Data type: WORD After successful initialization (by a rising edge FALSE > TRUE at Activate), the address of the F-upstream connection present is output here (value range 0x0001 to 0xFFFE). If the initialization failed or the F-Device is not parameterized, the value 0x0000 is output. F_Diag_Status Short description Value Mapped diagnostic information (bit field, length 16 bits) output by the F-Device instance. This status word provides information about which detected errors can be acknowledged. Data type: WORD Initial value: 0x0000 The value TRUE at bit position x indicates the presence of a corresponding diagnostic message. The meaning of the bit positions are described in the table below. In the following table, the value nnnnn represents the value in F_Address_Out. Bit pos. x Corresponding system variable Meaning/name in the PROFIsafe profile Bit 0 FD_ADDR_[nnnnn]_ACK_REQ_DEV OA_Req_DC: The F-Device indicates the request for an operator acknowledgment (OA_C within F-Host). At the device this is usually implemented via an LED. Bit 1 FD_ADDR_[nnnnn]_PASS_ON_DEV activate_FV_DC: Indicates that the F-output data received from F-Host are fail-safe values (FV = 0). Can be used to force the outputs of the local F-Device to configured or built-in fail-safe values. Bit 2 FD_ADDR_[nnnnn]]_IPAR_EN_DEV iPAR_EN_DC: The value TRUE indicates a parameterization request from F-Host (F-Device needs new iParameters) Bit 3 FD_ADDR_[nnnnn]_CHF_ACK_REI_DEV ChF_Ack_DC: F_Passivation =1: The F-Host user program sets this variable to TRUE. This acknowledgment confirms that the signal channel fault has been cleared and operating personnel has left the protection area. Bit 4 reserved reserved Bit 5 FD_ADDR_[nnnnn]_CE_CRC_DEV CE_CRC - F-Device detects CRC fault. Bit 6 FD_ADDR_[nnnnn]_WD_TIMEOUT_DEV WD_timeout - F-Device detects timeout. Bit 7 to 15 reserved reserved Error Short description Value Output for error message. Data type: BOOL FALSE: No error is present (that is to say, the FB is not in an error state) or the FB is not active. TRUE: The function block has detected an error. The error state is shown at the DiagCode output. DiagCode Short description Value Output for diagnostic message. Data type: WORD Diagnostic message of the function block. The possible values are listed and described in the following table row "Diagnostic codes".
Diagnostic codes	The DiagCode output indicates the current FB status. While an error is indicated, this is the error code. Table with diagnostic codes Code (hex) Description Options for remedy 0000 State name: Idle The function block is not activated. The Activate input is FALSE. Output values: » Ready = FALSE » F_Address_Out = 0x0000 » F_Diag_Status = interface data (OUT) » Error = FALSE » DiagCode = 0x0000 Activate the function block by switching Activate to TRUE. 8001 State name: Init The FB verifies the following: No F-diagnostic variables are parameterized in the Safety PLC. A valid F_Address is configured in the local F-Device. No other FB instance has already been initialized. The FB can only be successfully initialized if all three checks are successful. Output values: » Ready = TRUE » F_Address_Out = address of the F-Device (between 0x001 and 0xFFE) if initialized. Otherwise 0x0000. » F_Diag_Status = 0x0000 » Error = FALSE » DiagCode = 0x8001 No measures required after successful initialization. If the initialization fails: Check the application program and the configuration of the Safety PLC. Correct/modify accordingly. Rebuild the project in PLCnext Engineer. Write the modified project to the controller and perform a restart. 8000 State name: Success The FB is active. The F-address configured in the local F-Device has been read and is now present at output F_Address_Out. Output F_Diag_Status has been successfully updated. Output values: » Ready = TRUE » F_Address_Out = address of the F-Device (between 0x001 and 0xFFE) if initialized. Otherwise 0x0000. » F_Diag_Status = interface data (OUT) » Error = FALSE » DiagCode = 0x8000 If this is an intended event, no measures are required. If this is an unintentional event: Check the application program and the configuration of the Safety PLC. Correct/modify accordingly. Rebuild the project in PLCnext Engineer. Write the modified project to the controller and perform a restart. C000 State name: Error invalid F-Address Invalid FB configuration: The FB has detected an invalid F-address configured in the local F-Device (0x0000 or 0xFFFF). Output values: » Ready = TRUE » F_Address_Out = address of the F-Device (between 0x001 and 0xFFE) if initialized. Otherwise 0x0000. » F_Diag_Status = 0x0000 » Error = TRUE » DiagCode = 0xC000 Check the configuration of the local F-Device as well as the application program. Correct/modify accordingly. Rebuild the project in PLCnext Engineer. Write the modified project to the controller and perform a restart. C002 State name: Error double instance Invalid FB configuration: An instance of the same FB has already been created or activated. Output values: » Ready = TRUE » F_Address_Out = address of the F-Device (between 0x001 and 0xFFE) if initialized. Otherwise 0x0000. » F_Diag_Status = 0x0000 » Error = TRUE » DiagCode = 0xC002 Check the application program with regard to the address value at the FB input used twice. Correct/modify accordingly. Rebuild the project in PLCnext Engineer. Write the modified project to the controller and perform a restart. C005 State name: Error Diag variables active F-diagnostic variables are parameterized in the Safety PLC. Output values: » Ready = TRUE » F_Address_Out = address of the F-Device (between 0x001 and 0xFFE) if initialized. Otherwise 0x0000. » F_Diag_Status = 0x0000 » Error = TRUE » DiagCode = 0xC005 Check the application program. Correct/modify accordingly. Rebuild the project in PLCnext Engineer. Write the modified project to the controller and perform a restart. C006 State name: Error Write output Internal firmware error. In this case, the firmware of the Safety PLC assumes the fail-safe state. Output values: » Ready = TRUE » F_Address_Out = address of the F-Device (between 0x001 and 0xFFE) if initialized. Otherwise 0x0000. » F_Diag_Status = 0x0000 » Error = TRUE » DiagCode = 0xC006 Refer to the error reported in PLCnext Engineer. The error log of the Safety PLC can be read out and displayed in the Safety Cockpit.