Display Filter Reference: Modbus

Protocol field name: modbus

Versions: 1.8.0 to 2.4.4

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Field name Description Type Versions
modbus.and_mask AND mask Unsigned integer, 2 bytes 1.10.0 to 2.4.4
modbus.bit_cnt Bit Count Unsigned integer, 2 bytes 1.10.0 to 2.4.4
modbus.bitnum Bit Number Unsigned integer, 2 bytes 2.4.0 to 2.4.4
modbus.bitval Bit Value Boolean 2.4.0 to 2.4.4
modbus.byte_cnt Byte Count Unsigned integer, 1 byte 1.10.0 to 2.4.4
modbus.byte_cnt_16 Byte Count (16-bit) Unsigned integer, 1 byte 1.10.0 to 2.4.4
modbus.conformity_level Conformity Level Unsigned integer, 1 byte 1.10.0 to 2.4.4
modbus.data Data Sequence of bytes 1.10.0 to 2.4.4
modbus.data.decode Invalid decoding options, register data not a multiple of 4! Label 1.12.0 to 2.4.4
modbus.diagnostic.ascii_input_delimiter CHAR Unsigned integer, 1 byte 1.10.0 to 2.4.4
modbus.diagnostic.bus_char_overrun_count Slave Character Overrun Count Unsigned integer, 2 bytes 1.10.0 to 2.4.4
modbus.diagnostic.bus_comm_error_count CRC Error Count Unsigned integer, 2 bytes 1.10.0 to 2.4.4
modbus.diagnostic.bus_exception_error_count Exception Error Count Unsigned integer, 2 bytes 1.10.0 to 2.4.4
modbus.diagnostic.bus_message_count Total Message Count Unsigned integer, 2 bytes 1.10.0 to 2.4.4
modbus.diagnostic.clear_ctr_diag_reg Clear Counters & Diag Register Echo Unsigned integer, 2 bytes 2.0.0 to 2.4.4
modbus.diagnostic.no_slave_response_count Slave No Response Count Unsigned integer, 2 bytes 1.10.0 to 2.4.4
modbus.diagnostic.restart_communication_option Restart Communication Option Unsigned integer, 2 bytes 1.10.0 to 2.4.4
modbus.diagnostic.return_diag_register Diagnostic Register Contents Unsigned integer, 2 bytes 1.10.0 to 2.4.4
modbus.diagnostic.return_query_data.echo Echo Data Sequence of bytes 1.10.0 to 2.4.4
modbus.diagnostic.return_query_data.request Request Data Sequence of bytes 1.10.0 to 2.4.4
modbus.diagnostic.slave_busy_count Slave Device Busy Count Unsigned integer, 2 bytes 1.10.0 to 2.4.4
modbus.diagnostic.slave_message_count Slave Message Count Unsigned integer, 2 bytes 1.10.0 to 2.4.4
modbus.diagnostic.slave_nak_count Slave NAK Count Unsigned integer, 2 bytes 1.10.0 to 2.4.4
modbus.diagnostic_code Diagnostic Code Unsigned integer, 2 bytes 1.10.0 to 2.4.4
modbus.ev_count Event Count Unsigned integer, 2 bytes 1.10.0 to 2.4.4
modbus.ev_msg_count Message Count Unsigned integer, 2 bytes 1.10.0 to 2.4.4
modbus.ev_recv_broadcast Broadcast Received Unsigned integer, 1 byte 1.10.0 to 2.4.4
modbus.ev_recv_char_over Character Overrun Unsigned integer, 1 byte 1.10.0 to 2.4.4
modbus.ev_recv_comm_err Communication Error Unsigned integer, 1 byte 1.10.0 to 2.4.4
modbus.ev_recv_lo_mode Currently in Listen Only Mode Unsigned integer, 1 byte 1.10.0 to 2.4.4
modbus.ev_send_lo_mode Currently in Listen Only Mode Unsigned integer, 1 byte 1.10.0 to 2.4.4
modbus.ev_send_read_ex Read Exception Sent Unsigned integer, 1 byte 1.10.0 to 2.4.4
modbus.ev_send_slave_abort_ex Slave Abort Exception Sent Unsigned integer, 1 byte 1.10.0 to 2.4.4
modbus.ev_send_slave_busy_ex Slave Busy Exception Sent Unsigned integer, 1 byte 1.10.0 to 2.4.4
modbus.ev_send_slave_nak_ex Slave Program NAK Exception Sent Unsigned integer, 1 byte 1.10.0 to 2.4.4
modbus.ev_send_write_timeout Write Timeout Error Occurred Unsigned integer, 1 byte 1.10.0 to 2.4.4
modbus.ev_status Status Unsigned integer, 2 bytes 1.10.0 to 2.4.4
modbus.event Event Unsigned integer, 1 byte 2.0.0 to 2.4.4
modbus.exception_code Exception Code Unsigned integer, 1 byte 1.10.0 to 2.4.4
modbus.func_code Function Code Unsigned integer, 1 byte 1.10.0 to 2.4.4
modbus.mei MEI type Unsigned integer, 1 byte 1.10.0 to 2.4.4
modbus.more_follows More Follows Unsigned integer, 1 byte 1.10.0 to 2.4.4
modbus.next_object_id Next Object ID Unsigned integer, 1 byte 1.10.0 to 2.4.4
modbus.num_objects Number of Objects Unsigned integer, 1 byte 1.10.0 to 2.4.4
modbus.object_id Object ID Unsigned integer, 1 byte 1.10.0 to 2.4.4
modbus.object_str_value Object String Value Character string 1.10.0 to 2.4.4
modbus.object_value Object Value Sequence of bytes 2.0.0 to 2.4.4
modbus.objects_len Object length Unsigned integer, 1 byte 1.10.0 to 2.4.4
modbus.or_mask OR mask Unsigned integer, 2 bytes 1.10.0 to 2.4.4
modbus.padding Padding Unsigned integer, 1 byte 2.0.0 to 2.4.4
modbus.read_device_id Read Device ID Unsigned integer, 1 byte 1.10.0 to 2.4.4
modbus.read_reference_num Read Reference Number Unsigned integer, 2 bytes 1.10.0 to 2.4.4
modbus.read_word_cnt Read Word Count Unsigned integer, 2 bytes 1.10.0 to 2.4.4
modbus.reference_num Reference Number Unsigned integer, 2 bytes 1.10.0 to 2.4.4
modbus.reference_num_32 Reference Number (32 bit) Unsigned integer, 4 bytes 1.10.0 to 2.4.4
modbus.reference_type Reference Type Unsigned integer, 1 byte 1.10.0 to 2.4.4
modbus.reg16 Register Value (16-bit) Unsigned integer, 2 bytes 2.0.0 to 2.2.12
modbus.reg32 Register Value (32-bit) Unsigned integer, 4 bytes 2.0.0 to 2.2.12
modbus.register.ieee_float Register (IEEE Float) Floating point (single-precision) 1.10.0 to 1.12.13
modbus.register.modicon_float Register (Modicon Float) Floating point (single-precision) 1.10.0 to 1.12.13
modbus.register.uint16 Register (UINT16) Unsigned integer, 2 bytes 1.10.0 to 1.12.13
modbus.register.uint32 Register (UINT32) Unsigned integer, 4 bytes 1.10.0 to 1.12.13
modbus.regnum16 Register Number Unsigned integer, 2 bytes 2.4.0 to 2.4.4
modbus.regnum32 Register Number Unsigned integer, 4 bytes 2.4.0 to 2.4.4
modbus.regval_float Register Value (IEEE Float) Floating point (single-precision) 2.4.0 to 2.4.4
modbus.regval_int16 Register Value (INT16) Signed integer, 2 bytes 2.4.0 to 2.4.4
modbus.regval_int32 Register Value (INT32) Signed integer, 4 bytes 2.4.0 to 2.4.4
modbus.regval_uint16 Register Value (UINT16) Unsigned integer, 2 bytes 2.4.0 to 2.4.4
modbus.regval_uint32 Register Value (UINT32) Unsigned integer, 4 bytes 2.4.0 to 2.4.4
modbus.request_frame Request Frame Frame number 2.0.0 to 2.4.4
modbus.word_cnt Word Count Unsigned integer, 2 bytes 1.10.0 to 2.4.4
modbus.write_reference_num Write Reference Number Unsigned integer, 2 bytes 1.10.0 to 2.4.4
modbus.write_word_cnt Write Word Count Unsigned integer, 2 bytes 1.10.0 to 2.4.4
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