PLC-5 and SLC 500 error messages

File numbers must be between 0 and 999

For PLC-5 and SLC 500: Incorrect format for the Item. The Item’s File Number was out of range.

A bad item File Number was used.

Use a valid range for the Item’s File Number.

OUTPUT file number must be 0

For PLC-5 and SLC 500: Incorrect format for the item. The Output Item’s File Number was not 0.

The Output Item’s File Number must be 0.

Only access the Output Item with a File Number equaling to 0.

INPUT file number must be 1

For PLC-5 and SLC 500: Incorrect format for the item. The Input Item’s File Number was not 1.

The Input Item’s File Number must be 1.

Only access the Input Item with a File Number that equals to 1.

STATUS file number must be 2

For PLC-5 and SLC 500: Incorrect format for the item. The Status Item’s File Number was not 2.

The Status Item’s File Number must be 2.

Only access the Status Item with a File Number equaling to 2.

FLOATING POINT file number must be greater than 2

For PLC-5 and SLC 500: Incorrect format for the item. The Floating Point Item’s File Number was smaller than 3.

The Floating Point Item’s File Number must be 3 or larger.

Only access the Floating Point Item with a File Number that equals to 3 or larger.

FLOATING POINT file cannot have bit number

For PLC-5 and SLC 500: Incorrect format for the item. The Floating Point Item contained a bit number field.

The Floating Point Item must not contain a bit number field.

Only access the Floating Point Item without a bit number field.

ASCII file number must be greater than 2

For PLC-5 and SLC 500: Incorrect format for the item. The ASCII Item’s File Number was smaller than 3.

The ASCII Item’s File Number must be 3 or larger.

Only access the ASCII Item with a File Number equaling to 3 or larger.