7i80db 7i77 + 7i76 serup Hal conf

i just had a look at my old topics. You also helped me 2 years ago. i think the same problem happend. First i am gonna check if the field power is available

got the 7i76 working, however i am getting a Field I/O fault from the 7i77. CR16 is shining red. i dont understand what this means. Pin W1 is in the default position. i have supplied 24v to pin 5 'vin'.

Note that the sserial channel on J4 (7I77) is channel 1


IO Connections for J4
DB25 pin#             I/O   Pri. func    Sec. func        Chan     Sec. Pin func   Sec. Pin Dir

 1                     34   IOPort       SSerial          1        TXEn2           (Out)
14                     35   IOPort       SSerial          1        TXData2         (Out)
 2                     36   IOPort       SSerial          1        RXData2         (In)
15                     37   IOPort       SSerial          1        TXData1         (Out)
 3                     38   IOPort       SSerial          1        RXData1         (In)
16                     39   IOPort       SSerial          1        TXData0         (Out)
 4                     40   IOPort       SSerial          1        RXData0         (In)


This means you would need something like:
loadrt hm2_eth board_ip="192.168.1.121" config="num_encoders=3 num_pwmgens=3 num_stepgens=3 sserial_port_0=00xx sserial_port_1=000xxxxx" to enable the second sserial port that the 7I77 is
connected to.

Efficiency wise, it would probably be better to use a configuration with all sserial I/O on one port, like this:

 


Also do not supply power to the 7I77 VIN pin if W1 is in the left hand (default) position
instead supply field power to VFIELD (TB2 pins 1,2,3,4)