Hi, I am new in the ethercat community and am trying to configure my
devices. My
configuration :
$ ethercat slaves
0 1:0 PREOP + EK1100 EtherCAT-Koppler (2A E-Bus)
1 1:1 PREOP + EL2008 8Ch. Dig. Output 24V, 0.5A
2 1:2 PREOP E EL3102 2K. Ana. Eingang +/-10V, DIFF
I am testing the devices using the example code available in
/example/user/main.c in the main package.
When I launch it without modifying it, I get this :
Configuring PDOs...
Activating master...
pd: 0
Starting timer...
Started.
3 slave(s).
AL states: 0x02.
Link is up.
AL states: 0x0A.
After the modification of position of my modules according to their
physical position (especially for the EL3102 AnaInSlavePos ):
#define BusCouplerPos 0, 0
#define DigOutSlavePos 0, 1
#define AnaInSlavePos 0, 2
#define AnaOutSlavePos 0, 4
, I get this, which is a pretty good result :
Configuring PDOs...
Activating master...
pd: 0
Starting timer...
Started.
3 slave(s).
AL states: 0x03.
Link is up.
AnaIn: State 0x01.
AnaIn: online.
Domain1: WC 1.
Domain1: State 1.
AL states: 0x0A.
AnaIn: State 0x08.
AnaIn: operational.
So the EL3102 module is detected and operationnal.
Now my aim is to get the same result with my EL2008 module. The
example code is using a EL2004 module, which is the same only with 8
outputs. To do this, I generate the module configuration using
$ ethercat -p1 cstruct
/* Slave 1, "EL2008"
* Vendor ID: 0x00000002
* Product code: 0x07d83052
* Revision number: 0x00100000
*/
ec_pdo_entry_info_t slave_1_pdo_entries[] = {
{0x7000, 0x01, 1}, /* Output */
{0x7010, 0x01, 1}, /* Output */
{0x7020, 0x01, 1}, /* Output */
{0x7030, 0x01, 1}, /* Output */
{0x7040, 0x01, 1}, /* Output */
{0x7050, 0x01, 1}, /* Output */
{0x7060, 0x01, 1}, /* Output */
{0x7070, 0x01, 1}, /* Output */
};
ec_pdo_info_t slave_1_pdos[] = {
{0x1600, 1, slave_1_pdo_entries + 0}, /* Channel 1 */
{0x1601, 1, slave_1_pdo_entries + 1}, /* Channel 2 */
{0x1602, 1, slave_1_pdo_entries + 2}, /* Channel 3 */
{0x1603, 1, slave_1_pdo_entries + 3}, /* Channel 4 */
{0x1604, 1, slave_1_pdo_entries + 4}, /* Channel 5 */
{0x1605, 1, slave_1_pdo_entries + 5}, /* Channel 6 */
{0x1606, 1, slave_1_pdo_entries + 6}, /* Channel 7 */
{0x1607, 1, slave_1_pdo_entries + 7}, /* Channel 8 */
};
ec_sync_info_t slave_1_syncs[] = {
{0, EC_DIR_OUTPUT, 8, slave_1_pdos + 0, EC_WD_ENABLE},
};
So now I replace the product code ID in my code, and the configuration
part of the EL2004 by this one, to get the following configuration (I
keep the el2004 names):
#if CONFIGURE_PDOS
// Analog in --------------------------
static ec_pdo_entry_info_t el3102_pdo_entries[] = {
{0x3101, 1, 8}, // channel 1 status
{0x3101, 2, 16}, // channel 1 value
{0x3102, 1, 8}, // channel 2 status
{0x3102, 2, 16}, // channel 2 value
{0x6401, 1, 16}, // channel 1 value (alt.)
{0x6401, 2, 16} // channel 2 value (alt.)
};
static ec_pdo_info_t el3102_pdos[] = {
{0x1A00, 2, el3102_pdo_entries},
{0x1A01, 2, el3102_pdo_entries + 2}
};
static ec_sync_info_t el3102_syncs[] = {
{2, EC_DIR_OUTPUT},
{3, EC_DIR_INPUT, 2, el3102_pdos},
{0xff}
};
// Analog out -------------------------
static ec_pdo_entry_info_t el4102_pdo_entries[] = {
{0x3001, 1, 16}, // channel 1 value
{0x3002, 1, 16}, // channel 2 value
};
static ec_pdo_info_t el4102_pdos[] = {
{0x1600, 1, el4102_pdo_entries},
{0x1601, 1, el4102_pdo_entries + 1}
};
static ec_sync_info_t el4102_syncs[] = {
{2, EC_DIR_OUTPUT, 2, el4102_pdos},
{3, EC_DIR_INPUT},
{0xff}
};
// Digital out ------------------------
static ec_pdo_entry_info_t el2004_channels[] = {
{0x7000, 0x01, 1},
{0x7010, 0x01, 1},
{0x7020, 0x01, 1},
{0x7030, 0x01, 1},
{0x7040, 0x01, 1},
{0x7050, 0x01, 1},
{0x7060, 0x01, 1},
{0x7070, 0x01, 1}
};
static ec_pdo_info_t el2004_pdos[] = {
{0x1600, 1, &el2004_channels[0]},
{0x1601, 1, &el2004_channels[1]},
{0x1602, 1, &el2004_channels[2]},
{0x1603, 1, &el2004_channels[3]},
{0x1604, 1, &el2004_channels[4]},
{0x1605, 1, &el2004_channels[5]},
{0x1606, 1, &el2004_channels[6]},
{0x1607, 1, &el2004_channels[7]}
};
static ec_sync_info_t el2004_syncs[] = {
{0, EC_DIR_OUTPUT, 8, el2004_pdos, EC_WD_ENABLE},
{0xff}
};
//*************************************
#endif
But now I get the following error :
Configuring PDOs...
Failed to register PDO entry: No such file or directory
PDO entry registration failed!
I don't understand this error. Indeed, when using the configuration of
the device I do not have, there is no problem, and when I replace it
by the code directly generated by my device, I meet this problem...
What do you think about it ? Did i forgot something ?
Thank you in advance !
Roland
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