EJ2502 - 2-channel pulse width output module 24 V DC

EJ2502 - setting of the process data objects (PDO)

 

The process data to be transmitted (PDO, ProcessDataObjects) can be selected by the user

for all channels simultaneously via the "Predefined PDO Assignment" selection dialog; see fig. (E) below.
The EJ2502 offers a choice of three different "Predefined PDO Assignments":
"Pulse width (standard)": 0x1600 and 0x1601 (marked in blue in the illustration below)
"Pulse width and frequency (16 bit)": 0x1602 and 0x1603 (marked in red in the illustration below)
"Pulse width and frequency 1 Hz (32-bit)": 0x1604 and 0x1605 (marked in green in the illustration below)
These can be selected for individual channels and PDOs by selecting the Sync Manager (see illustration A below) and then selecting the PDOs (see illustration B below).
Exclusion criteria prevent irregular combinations. Excluded PDOs have a grey background. Therefore, for example, the PDO 0x1600 cannot be selected as long as 0x1604 is activated.

These changes become effective after activation and an EtherCAT restart or a reload.

The assignment of the PDOs to the respective Sync Manager is displayed in the "SM" column in the "PDO List" (see fig. C below). The contents of the PDO selected in the "PDO List" are displayed in the "PDO Content" field (see fig. D below). An overview of the assignment and contents of the PDOs can be found in the chapter "EJ2502 - Assignment and contents of the PDOs".
The selected PDOs are displayed in the TwinCAT tree (F) and can be linked.
A detailed description of the selection of the PDO can be found in the chapter "EtherCAT device configuration".

 
 
 
 
Operation modes of the EJ2502
 
 

EJ2502 - Assignment and contents of the PDOs

Predefined PDO Assignment
PDO
Index
Name (size in byte.bit)
Index of excluded PDOs
SM
PDO content
Index - name (size in byte.bit)
Pulswith (standard)
0x1600
PWM Outputs Channel 1 (2.0)
0x1602,
0x1604
2
0x7000:11 - PWM output (2.0)
0x1601
PWM Outputs Channel 2 (2.0)
0x1603,
0x1605
0x7010:11 - PWM output (2.0)
Pulswith and frequency (16 bit)
0x1602
PWM Outputs Channel 1 (4.0)
0x1600,
0x1604
0x7000:11 - PWM output (2.0)
0x7000:12 - PWM period (2.0)
0x1603
PWM Outputs Channel 2 (4.0)
0x1601,
0x1605
0x7010:11 - PWM output (2.0)
0x7010:12 - PWM period (2.0)
Pulswith and frequency (1 Hz) (32 bit)
0x1604
PWM Outputs Channel 1 (6.0)
0x1600,
0x1602
0x7000:11 - PWM output (2.0)
0x7000:13 - PWM period 1 Hz (4.0)
0x1605
PWM Outputs Channel 2 (6.0)
0x1601,
0x1603
0x7010:11 - PWM output (2.0)
0x7010:13 - PWM period 1 Hz (4.0)