https://doc.pinetek-networks.com/ 2026-05-05T09:19:04+00:00 https://doc.pinetek-networks.com/ https://doc.pinetek-networks.com/lib/exe/fetch.php?media=wiki:logo.png text/html 2026-01-18T12:10:50+00:00 Anonymous (anonymous@undisclosed.example.com) https://doc.pinetek-networks.com/doku.php?id=iol-hat:sw:1_introduction&rev=1768738250&do=diff 1 Introduction This section describes the methods and procedures that are used in connection with the open source software for the IOL HAT (“IOL master application”) which is available in the Github repository: <https://github.com/Pinetek-Networks/iol-hat> The software is based on the I-Link stack by RT-Labs. Please note that the software has been proven to work in different applications, however, it comes without guarantees of specific functions or functionality. text/html 2025-04-16T15:31:51+00:00 Anonymous (anonymous@undisclosed.example.com) https://doc.pinetek-networks.com/doku.php?id=iol-hat:sw:2_iol-master-application&rev=1744817511&do=diff 2 IOL Master Application To operate the IOL HAT on a Raspberry Pi, the master application binary from the IOL HAT repository is used: <https://github.com/Pinetek-Networks/iol-hat/bin> Important note on the startup order: To work properly, the master application needs to be started AFTER 24V power is applied. Failure to do so will result in broken IO-Link communication. text/html 2025-04-16T15:26:11+00:00 Anonymous (anonymous@undisclosed.example.com) https://doc.pinetek-networks.com/doku.php?id=iol-hat:sw:3_binary-protocol&rev=1744817171&do=diff 3 Binary protocol The sequence for communication over TCP is as follows: The commands and responses are exchanged in the send() and receive() part of the sequence. The first octet in the command structure always defines the command ID. If two IOL HAT are stacked, they share the same SPI data lines but different CS and IRQ lines. Which lines are used is set by jumpers on the hardware. The Master Application uses different TCP ports for adressing the port 1+3 setup and the port 2+4 setup (i.e… text/html 2025-04-16T15:41:46+00:00 Anonymous (anonymous@undisclosed.example.com) https://doc.pinetek-networks.com/doku.php?id=iol-hat:sw:appendix-a_error-messages&rev=1744818106&do=diff Appendix-A Error messages The following extended Error Messages are defined (see iolink.h in application source code): IOLINK_SMI_ERRORTYPE_NONE = 0x0000, /* Table C.1 ErrorTypes */ IOLINK_SMI_ERRORTYPE_APP_DEV = 0x8000, IOLINK_SMI_ERRORTYPE_IDX_NOTAVAIL = 0x8011, IOLINK_SMI_ERRORTYPE_SUBIDX_NOTAVAIL = 0x8012, IOLINK_SMI_ERRORTYPE_SERV_NOTAVAIL = 0x8020, IOLINK_SMI_ERRORTYPE_SERV_NOTAVAIL_LOCCTRL = 0x8021, IOLINK_SMI_ERRORTYPE_SERV… text/html 2025-04-18T10:11:22+00:00 Anonymous (anonymous@undisclosed.example.com) https://doc.pinetek-networks.com/doku.php?id=iol-hat:sw:start&rev=1744971082&do=diff IOL HAT Software Manual This is the online software manual for the IOL HAT's TCP protocol Contents sw index