Checking Hardware Revision from Epec Units

Through CODESYS IDE

Epec Code Template includes variables for system information. Variable location depends on the platform.

CODESYS 2.3

The variables can be found from Resources tab > Global variables > Implicit Globals > SYSTEM.

CODESYS 3.5

In 6000 series (device description 1.2.0.X or older) and 5050 the variables can be found from Device > Application > CodeTemplate > Globals > SYSTEM.

Variables are similar than CODESYS 2.3 above.

In S Series Control Units and 6000 series (device description 1.3.1.X or newer), the system information variables can be found in Device > Application > CodeTemplate > Globals > G_SystemInfo.

The following example is from SC52.

Through CAN

Hardware revision information can be read via SDO messages from index 1018h sub-index 3.

The index 1018h is available even if the unit does not have application.

1018h index data type is unsigned 32 (four bytes) and changing the result to STRING type depends on the unit type.

Interpreting the results

The following chapters describe different unit types and how to interpret the result.

S Series / E Series

Reading 1018h sub-index 3 from S Series / E Series unit (e.g. SC52) responses, for example, with following bytes as a result: 90h, 01h, D4h, 22h.

Byte3 and Byte4 from the result defines the unit type. The hardware revision can be read from Byte1 and Byte2.

Convert the revision from hexadecimal value to decimal value. The first digit from the decimal value defines the alphabetic letter, starting from decimal value 1 = A, 2 = B, 3 = C etc.

In this example, number 4 means D. The last digits (00) are handled as a numeric value. Then the result can be read as 8916 D00.

5050 & 6000/X Series

Reading 1018h sub-index 3 from the unit responds, for example, with following bytes as a result: BAh, 13h, F8h, 01h.

6000/X series units need an application before it responds to SDO query.

Byte1 and Byte2 from the result defines the unit type.

The hardware revision can be read from Byte3 and Byte4. Convert the revision from hexadecimal value to decimal value. The first digit from the decimal value defines the alphabetic letter, starting from decimal value 1 = A, 2 = B, 3 = C etc. In this example, number 5 means E. The last (04) digits are handled as a numeric value. Then the result can be read as 5050 E04.

6505 Units

Reading 1018h sub-index 3 from the unit responds, for example, with following bytes as a result: 69h, 19h, 41h, 42h.

6505 units need an application before it responds to SDO query.

3000 Series, 4000 Series

Reading 1018h sub-index 3 from the unit unit responds, for example, with following bytes as a result: 03h, 00h, 03h, 00h.

202x/203x/2040

Reading 1018h sub-index 3 from 202x/203x/2040 units responses, for example, with following bytes as a result: C0h, 02h, 00h, 00h.