PROFINET - Sample Applications
Several sample applications are provided for port’s PROFINET protocol stack. They show how to set up and use the stack. The following examples can be found in the folder goal/appl/goal_pnio/
Application | Description |
|---|---|
00_rp_cc | communication core application (for multicore targets only) |
01_simple_io | Simple I/O data mirror example |
02_io_demo | Maps the I/O data on the LEDs and buttons |
03_record_write | Shows how to process a record write |
05_ioxs_states | IOPS and IOCS handling |
06_apdu_status | Like IOxS status but for APDU |
07_alarm_button | Trigger an alarm with a button |
08_dynamic_modules | Example for dynamic module handling |
09_busy_records | Demo for postponing record handling |
10_led_demo | DCP signal on LED demo |
11_multiple_write | Process a multiple write request |
12_diag_entry | Creates and removes a diagnosis entry |
13_pnio_snmp | Simple I/O data mirror example incl. SNMP |
14_info_set | Set the device information data |
15_config_set | Set the PROFINET config data |
16_device_name | Set device name in application |
17_process_alert | Cyclically process alarm sending example |
18_dyn_mod_postpone | ExpectedSubmoduleBlock post-poning example |
19_subst_val |
|
20_subst_mod | Substitute value module acceptance example |
21_pnio_snmp_dm | Simple I/O data mirror example incl. SNMP and MCTC |
22_process_alarm_buf |
|
24_pnio_snmp_mrp | Simple I/O data mirror example incl. SNMP and MRP |
25_dynamic_modules_dm | Equals 08_dynamic_modules but process data will be exchanged via DM instead of RPC |
A more detailed description for each application can be get from https://portgmbh.atlassian.net/wiki/spaces/PNIO/pages/131661863/Application+description#Application-description.
Configuring the sample application
Changing MAC Address
The default value of the board MAC address is 02:00:00:00:00:01.
Single-Core
MAC address can be changed by the application using the function goal_miEthCfgMacAddr(). This function keeps the user MAC address and applies it automatically, when Ethernet handler is open by GOAL in stage GOAL_STAGE_ETH_PRE.
Setting the MAC is done in appl_init() in general, as shown in the following example.
Code: example for configuring the user MAC
#define APPL_ETH_MAC_ADDR { 0x45, 0x33, 0xab, 0x00, 0x00, 0xFF }
GOAL_STATUS_T appl_init
void
)
{
GOAL_ETH_MAC_ADDR_T macAddress = GOAL_ETH_MAC_ADDR; /* mac address */
/* Configure the user MAC */
res = goal_miEthCfgMacAddr(0, GOAL_MI_ID, &macAddress);
if (GOAL_RES_ERR(res)) {
goal_logErr("failed to set MAC");
}
return res;
}Board hardware, like DIP switches or NVS, will not be available when calling appl_init(). If the user MAC requires one of these features, calling goal_miEthCfgMacAddr() in another startup stage of GOAL is also possible. But the user has to register the stage callback by goal_mainStageReg() first.
Please note https://portgmbh.atlassian.net/wiki/spaces/GOALR/pages/191562110 for further details.
Multi-Core
MAC address can be changed either by Communication Core as described in section Single-Core or by Application Core as followed.
Modifications in Communication Core project
Set GOAL_CONFIG_MEDIA_MI_ETH=1 in project configuration to delay opening the ETH interface until protocol instance is going to be created from AC.
Modifications in Application Core project
Call goal_miEthCfgMacAddr in appl_setup prior creating the network protocol instance.
Code: example for configuring the interface MAC from AC
#define APPL_ETH_MAC_ADDR { 0x45, 0x33, 0xab, 0x00, 0x00, 0xFF }
GOAL_STATUS_T appl_setup(
void
)
{
GOAL_STATUS_T res; /* result */
GOAL_ETH_MAC_ADDR_T mac = APPL_ETH_MAC_ADDR; /* mac address */
/* set Interface MAC at CC */
goal_miEthCfgMacAddr(0, GOAL_MA_ID_ETH, &mac);
/* create new PROFINET instance */
res = goal_pnioNew(&pPnio, APPL_PNIO_ID, appl_pnioCb);
if (GOAL_RES_ERR(res)) {
goal_logErr("failed to create a new PROFINET instance");
return res;
}Changing IP Address
The IP address is managed by the PLC. With a DCP configuration tool like https://portgmbh.atlassian.net/wiki/spaces/ICE , “Tia Portal” or “Primary Setup Tool” the IP address can be changed.