Display Filter Reference: Modbus/TCP
Protocol field name: mbtcp
Versions: 1.0.0 to 4.2.4
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| Field name | Description | Type | Versions |
|---|---|---|---|
| mbtcp | Cannot classify packet type. Try setting Modbus/TCP Port preference to this destination or source port | Label | 2.2.0 to 4.2.4 |
| mbtcp | Length | Unsigned integer (16 bits) | 1.8.0 to 4.2.4 |
| mbtcp | AND mask | Unsigned integer (16 bits) | 1.8.0 to 1.8.15 |
| mbtcp | bit count | Unsigned integer (16 bits) | 1.8.0 to 1.8.15 |
| mbtcp | byte count | Unsigned integer (8 bits) | 1.8.0 to 1.8.15 |
| mbtcp | byte count (16-bit) | Unsigned integer (8 bits) | 1.8.0 to 1.8.15 |
| mbtcp | Conformity Level | Unsigned integer (8 bits) | 1.8.0 to 1.8.15 |
| mbtcp | Data | Byte sequence | 1.8.0 to 1.8.15 |
| mbtcp | diagnostic code | Unsigned integer (16 bits) | 1.8.0 to 1.8.15 |
| mbtcp | event count | Unsigned integer (16 bits) | 1.8.0 to 1.8.15 |
| mbtcp | message count | Unsigned integer (16 bits) | 1.8.0 to 1.8.15 |
| mbtcp | Broadcast Received | Unsigned integer (8 bits) | 1.8.0 to 1.8.15 |
| mbtcp | Character Overrun | Unsigned integer (8 bits) | 1.8.0 to 1.8.15 |
| mbtcp | Communication Error | Unsigned integer (8 bits) | 1.8.0 to 1.8.15 |
| mbtcp | Currently in Listen Only Mode | Unsigned integer (8 bits) | 1.8.0 to 1.8.15 |
| mbtcp | Currently in Listen Only Mode | Unsigned integer (8 bits) | 1.8.0 to 1.8.15 |
| mbtcp | Read Exception Sent | Unsigned integer (8 bits) | 1.8.0 to 1.8.15 |
| mbtcp | Slave Abort Exception Sent | Unsigned integer (8 bits) | 1.8.0 to 1.8.15 |
| mbtcp | Slave Busy Exception Sent | Unsigned integer (8 bits) | 1.8.0 to 1.8.15 |
| mbtcp | Slave Program NAK Exception Sent | Unsigned integer (8 bits) | 1.8.0 to 1.8.15 |
| mbtcp | Write Timeout Error Occurred | Unsigned integer (8 bits) | 1.8.0 to 1.8.15 |
| mbtcp | status | Unsigned integer (16 bits) | 1.8.0 to 1.8.15 |
| mbtcp | exception code | Unsigned integer (8 bits) | 1.8.0 to 1.8.15 |
| mbtcp | function code | Unsigned integer (8 bits) | 1.8.0 to 1.8.15 |
| mbtcp | MEI type | Unsigned integer (8 bits) | 1.8.0 to 1.8.15 |
| mbtcp | More Follows | Unsigned integer (8 bits) | 1.8.0 to 1.8.15 |
| mbtcp | Next Object ID | Unsigned integer (8 bits) | 1.8.0 to 1.8.15 |
| mbtcp | Number of Objects | Unsigned integer (8 bits) | 1.8.0 to 1.8.15 |
| mbtcp | Object ID | Unsigned integer (8 bits) | 1.8.0 to 1.8.15 |
| mbtcp | Object String Value | Character string | 1.8.0 to 1.8.15 |
| mbtcp | Object length | Unsigned integer (8 bits) | 1.8.0 to 1.8.15 |
| mbtcp | OR mask | Unsigned integer (16 bits) | 1.8.0 to 1.8.15 |
| mbtcp | Read Device ID | Unsigned integer (8 bits) | 1.8.0 to 1.8.15 |
| mbtcp | read reference number | Unsigned integer (16 bits) | 1.8.0 to 1.8.15 |
| mbtcp | read word count | Unsigned integer (16 bits) | 1.8.0 to 1.8.15 |
| mbtcp | reference number | Unsigned integer (16 bits) | 1.8.0 to 1.8.15 |
| mbtcp | reference number (32 bit) | Unsigned integer (32 bits) | 1.8.0 to 1.8.15 |
| mbtcp | reference type | Unsigned integer (8 bits) | 1.8.0 to 1.8.15 |
| mbtcp | unit identifier | Unsigned integer (8 bits) | 1.8.0 to 1.8.15 |
| mbtcp | word count | Unsigned integer (16 bits) | 1.8.0 to 1.8.15 |
| mbtcp | write reference number | Unsigned integer (16 bits) | 1.8.0 to 1.8.15 |
| mbtcp | write word count | Unsigned integer (16 bits) | 1.8.0 to 1.8.15 |
| mbtcp | Protocol Identifier | Unsigned integer (16 bits) | 1.8.0 to 4.2.4 |
| mbtcp | Transaction Identifier | Unsigned integer (16 bits) | 1.8.0 to 4.2.4 |
| mbtcp | Unit Identifier | Unsigned integer (8 bits) | 1.10.0 to 4.2.4 |
| modbus | AND mask | Unsigned integer (16 bits) | 1.0.0 to 1.6.16 |
| modbus | bit count | Unsigned integer (16 bits) | 1.0.0 to 1.6.16 |
| modbus | byte count | Unsigned integer (8 bits) | 1.0.0 to 1.6.16 |
| modbus | byte count (16-bit) | Unsigned integer (8 bits) | 1.0.0 to 1.6.16 |
| modbus | Data | Byte sequence | 1.6.0 to 1.6.16 |
| modbus | exception code | Unsigned integer (8 bits) | 1.0.0 to 1.6.16 |
| modbus | function code | Unsigned integer (8 bits) | 1.0.0 to 1.6.16 |
| modbus | length | Unsigned integer (16 bits) | 1.0.0 to 1.6.16 |
| modbus | OR mask | Unsigned integer (16 bits) | 1.0.0 to 1.6.16 |
| modbus | protocol identifier | Unsigned integer (16 bits) | 1.0.0 to 1.6.16 |
| modbus | read reference number | Unsigned integer (16 bits) | 1.0.0 to 1.6.16 |
| modbus | read word count | Unsigned integer (16 bits) | 1.0.0 to 1.6.16 |
| modbus | reference number | Unsigned integer (16 bits) | 1.0.0 to 1.6.16 |
| modbus | reference number (32 bit) | Unsigned integer (32 bits) | 1.0.0 to 1.6.16 |
| modbus | reference type | Unsigned integer (8 bits) | 1.0.0 to 1.6.16 |
| modbus | transaction identifier | Unsigned integer (16 bits) | 1.0.0 to 1.6.16 |
| modbus | unit identifier | Unsigned integer (8 bits) | 1.0.0 to 1.6.16 |
| modbus | word count | Unsigned integer (16 bits) | 1.0.0 to 1.6.16 |
| modbus | write reference number | Unsigned integer (16 bits) | 1.0.0 to 1.6.16 |
| modbus | write word count | Unsigned integer (16 bits) | 1.0.0 to 1.6.16 |