Display Filter Reference: Modbus

Protocol field name: modbus

Versions: 1.8.0 to 3.6.8

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Field name Description Type Versions
modbus.and_mask AND mask Unsigned integer (2 bytes) 1.10.0 to 3.6.8
modbus.bit_cnt Bit Count Unsigned integer (2 bytes) 1.10.0 to 3.6.8
modbus.bitnum Bit Number Unsigned integer (2 bytes) 2.4.0 to 3.6.8
modbus.bitval Bit Value Boolean 2.4.0 to 3.6.8
modbus.byte_cnt Byte Count Unsigned integer (1 byte) 1.10.0 to 3.6.8
modbus.byte_cnt_16 Byte Count (16-bit) Unsigned integer (1 byte) 1.10.0 to 3.6.8
modbus.conformity_level Conformity Level Unsigned integer (1 byte) 1.10.0 to 3.6.8
modbus.data Data Byte sequence 1.10.0 to 3.6.8
modbus.data.decode Invalid decoding options, register data not a multiple of 4! Label 1.12.0 to 3.6.8
modbus.diagnostic.ascii_input_delimiter CHAR Unsigned integer (1 byte) 1.10.0 to 3.6.8
modbus.diagnostic.bus_char_overrun_count Slave Character Overrun Count Unsigned integer (2 bytes) 1.10.0 to 3.6.8
modbus.diagnostic.bus_comm_error_count CRC Error Count Unsigned integer (2 bytes) 1.10.0 to 3.6.8
modbus.diagnostic.bus_exception_error_count Exception Error Count Unsigned integer (2 bytes) 1.10.0 to 3.6.8
modbus.diagnostic.bus_message_count Total Message Count Unsigned integer (2 bytes) 1.10.0 to 3.6.8
modbus.diagnostic.clear_ctr_diag_reg Clear Counters & Diag Register Echo Unsigned integer (2 bytes) 2.0.0 to 3.6.8
modbus.diagnostic.no_slave_response_count Slave No Response Count Unsigned integer (2 bytes) 1.10.0 to 3.6.8
modbus.diagnostic.restart_communication_option Restart Communication Option Unsigned integer (2 bytes) 1.10.0 to 3.6.8
modbus.diagnostic.return_diag_register Diagnostic Register Contents Unsigned integer (2 bytes) 1.10.0 to 3.6.8
modbus.diagnostic.return_query_data.echo Echo Data Byte sequence 1.10.0 to 3.6.8
modbus.diagnostic.return_query_data.request Request Data Byte sequence 1.10.0 to 3.6.8
modbus.diagnostic.slave_busy_count Slave Device Busy Count Unsigned integer (2 bytes) 1.10.0 to 3.6.8
modbus.diagnostic.slave_message_count Slave Message Count Unsigned integer (2 bytes) 1.10.0 to 3.6.8
modbus.diagnostic.slave_nak_count Slave NAK Count Unsigned integer (2 bytes) 1.10.0 to 3.6.8
modbus.diagnostic_code Diagnostic Code Unsigned integer (2 bytes) 1.10.0 to 3.6.8
modbus.ev_count Event Count Unsigned integer (2 bytes) 1.10.0 to 3.6.8
modbus.ev_msg_count Message Count Unsigned integer (2 bytes) 1.10.0 to 3.6.8
modbus.ev_recv_broadcast Broadcast Received Unsigned integer (1 byte) 1.10.0 to 3.6.8
modbus.ev_recv_char_over Character Overrun Unsigned integer (1 byte) 1.10.0 to 3.6.8
modbus.ev_recv_comm_err Communication Error Unsigned integer (1 byte) 1.10.0 to 3.6.8
modbus.ev_recv_lo_mode Currently in Listen Only Mode Unsigned integer (1 byte) 1.10.0 to 3.6.8
modbus.ev_send_lo_mode Currently in Listen Only Mode Unsigned integer (1 byte) 1.10.0 to 3.6.8
modbus.ev_send_read_ex Read Exception Sent Unsigned integer (1 byte) 1.10.0 to 3.6.8
modbus.ev_send_slave_abort_ex Slave Abort Exception Sent Unsigned integer (1 byte) 1.10.0 to 3.6.8
modbus.ev_send_slave_busy_ex Slave Busy Exception Sent Unsigned integer (1 byte) 1.10.0 to 3.6.8
modbus.ev_send_slave_nak_ex Slave Program NAK Exception Sent Unsigned integer (1 byte) 1.10.0 to 3.6.8
modbus.ev_send_write_timeout Write Timeout Error Occurred Unsigned integer (1 byte) 1.10.0 to 3.6.8
modbus.ev_status Status Unsigned integer (2 bytes) 1.10.0 to 3.6.8
modbus.event Event Unsigned integer (1 byte) 2.0.0 to 3.6.8
modbus.exception_code Exception Code Unsigned integer (1 byte) 1.10.0 to 3.6.8
modbus.func_code Function Code Unsigned integer (1 byte) 1.10.0 to 3.6.8
modbus.mei MEI type Unsigned integer (1 byte) 1.10.0 to 3.6.8
modbus.more_follows More Follows Unsigned integer (1 byte) 1.10.0 to 3.6.8
modbus.next_object_id Next Object ID Unsigned integer (1 byte) 1.10.0 to 3.6.8
modbus.num_objects Number of Objects Unsigned integer (1 byte) 1.10.0 to 3.6.8
modbus.object_id Object ID Unsigned integer (1 byte) 1.10.0 to 3.6.8
modbus.object_str_value Object String Value Character string 1.10.0 to 3.6.8
modbus.object_value Object Value Byte sequence 2.0.0 to 3.6.8
modbus.objects_len Object length Unsigned integer (1 byte) 1.10.0 to 3.6.8
modbus.or_mask OR mask Unsigned integer (2 bytes) 1.10.0 to 3.6.8
modbus.padding Padding Unsigned integer (1 byte) 2.0.0 to 3.6.8
modbus.read_device_id Read Device ID Unsigned integer (1 byte) 1.10.0 to 3.6.8
modbus.read_reference_num Read Reference Number Unsigned integer (2 bytes) 1.10.0 to 3.6.8
modbus.read_word_cnt Read Word Count Unsigned integer (2 bytes) 1.10.0 to 3.6.8
modbus.reference_num Reference Number Unsigned integer (2 bytes) 1.10.0 to 3.6.8
modbus.reference_num_32 Reference Number (32 bit) Unsigned integer (4 bytes) 1.10.0 to 3.6.8
modbus.reference_type Reference Type Unsigned integer (1 byte) 1.10.0 to 3.6.8
modbus.reg16 Register Value (16-bit) Unsigned integer (2 bytes) 2.0.0 to 2.2.17
modbus.reg32 Register Value (32-bit) Unsigned integer (4 bytes) 2.0.0 to 2.2.17
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 3.6.8
modbus.regnum32 Register Number Unsigned integer (4 bytes) 2.4.0 to 3.6.8
modbus.regval_float Register Value (IEEE Float) Floating point (single-precision) 2.4.0 to 3.6.8
modbus.regval_int16 Register Value (INT16) Signed integer (2 bytes) 2.4.0 to 3.6.8
modbus.regval_int32 Register Value (INT32) Signed integer (4 bytes) 2.4.0 to 3.6.8
modbus.regval_uint16 Register Value (UINT16) Unsigned integer (2 bytes) 2.4.0 to 3.6.8
modbus.regval_uint32 Register Value (UINT32) Unsigned integer (4 bytes) 2.4.0 to 3.6.8
modbus.request_frame Request Frame Frame number 2.0.0 to 3.6.8
modbus.response_time Time from request Time offset 3.0.0 to 3.6.8
modbus.word_cnt Word Count Unsigned integer (2 bytes) 1.10.0 to 3.6.8
modbus.write_reference_num Write Reference Number Unsigned integer (2 bytes) 1.10.0 to 3.6.8
modbus.write_word_cnt Write Word Count Unsigned integer (2 bytes) 1.10.0 to 3.6.8