List of TCP port numbers used by commercial equipment controllers: Allen Bradley – All newer Rockwell PLC’s: 44818 (See List Below for more details) Allen Bradley – Older Rockwell AB PLC5E and SLC5/05 use TCP 2222. Ethernet PLC-5 Programmable Controllers Catalog Numbers 1785-L20E, 1785-L40E, 1785-L80E, Series F Contents About This Publication This document describes how to install and troubleshoot your Ethernet PLC-5 programmable controller. For more information, see the documents listed on. Represents the file number. If not specified, it is assumed to be five. Otherwise it must be between 5 and 255 decimal. Indicates the element number (3 words per element) in the file (0 to 255). Identifies one of the valid values for timer fields specified in the table above. Part Number: 1756-A17: Manufacturer: Allen-Bradley / Rockwell Automation: Description: Allen-Bradley 1756-A17 17 Slot ControlLogix Chassis: Full Description: Allen-Bradley 1756-A17 ControlLogix chassis receives power from ControlLogix power supply. Compatible Power Supplies: 1756-PA72, 1756-PB72, 1756-PA75, 1756-PB75, 1756-PC75, 1756-PH75.
Micro/SLC-500/PLC 5 Addressing Formats
The general format of value names for data from the listed controllers matches the naming convention used by the programming software. The format is shown below. The parts of the name shown in in square brackets [] are optional.
General Value Name Format: X: [file] element [.field] [/bit]
X is the file type. The following table lists valid file types, the default file number for each type, and fields allowed:
Plc Slot Numbering
Plc 5 Slot Numbering Machine
| X | File Type | Default File Number | Fields |
| O | Output | 0 | |
| I | Input | 1 | |
| S | Status | 2 | |
| B | Binary | 3 | |
| T | Timer | 4 | .PRE, .ACC, .EN, .TT, .DN |
| C | Counter | 5 | .PRE, .ACC, .CU, .CD, .DN, .OV, .UN, .UA |
| R | Control | 6 | .LEN, .POS, .EN, .DN, .ER, .UL, .IN, .FD |
| N | Integer | 7 | |
| F | Floating | 8 | |
| A | ASCII | None |