How to read PSU status on FWA-2112

Purpose:

To show how to read PSU status on FWA-2112.

Scope:

FWA-2112 SKUs with redundant PSU.

Target Audience:

Advantechers technician

FWA-2112 users

Steps:

Most ENPD products support reading PSU status by aps tool if it supports PMbus function.

FWA-2112 has a different hardware design and need to install a driver named i2c_mcp2221 before running aps command.

If not, you will get following information and cannot get PSU status.

# lsmod | grep -i i2c
i2c_i801               32768  0
i2c_algo_bit           16384  1 igb

# aps -p FWA-2112 -s YM-2121a
Fail to send command to i2c device，please make sure the i2c driver has been loaded.

Here are the steps to install the driver and run aps command.

1. Unpack the driver package

2. Compile and install it

# make modules
# make install
# ./driver_load.sh

3. Now you can see i2c_mcp2221 module is loaded

# lsmod | grep -i i2c
i2c_mcp2221            16384  0
i2c_i801               32768  0
i2c_algo_bit           16384  1 igb

4. Then you can run aps tool and get power status as the following.

# aps -p FWA-2112 -s YM-2121a
---------------------------------------------------------------
NAME                 | VALUE           | STATUS          | TYPE
---------------------------------------------------------------
PSU_STATUS_WORD      | 0               | OK              | INFO
PSU_12_OUT-VOL       | 12.00           | OK              | VOL
PSU_12_OUT-CUR       | 0.24            | REF             | CUR
PSU_5_OUT-VOL        | 5.15            | OK              | VOL
PSU_5_OUT-CUR        | 1.66            | REF             | CUR
PSU_3_3_OUT-VOL      | 3.36            | OK              | VOL
PSU_3_3_OUT-CUR      | 2.75            | REF             | CUR
PSU1                 | 1               | RUN             | DEV
PSU1_STATUS_WORD     | 0               | OK              | INFO
PSU1_12_OUT-VOL      | 12.31           | OK              | VOL
PSU1_12_OUT-CUR      | 0.90            | REF             | CUR
PSU1_TEMP1-TMP       | 38.00           | OK              | TEMP
PSU1_TEMP2-TMP       | 32.00           | OK              | TEMP
PSU2                 | 1               | RUN             | DEV
PSU2_STATUS_WORD     | 0               | OK              | INFO
PSU2_12_OUT-VOL      | 12.33           | OK              | VOL
PSU2_12_OUT-CUR      | 1.16            | REF             | CUR
PSU2_TEMP1-TMP       | 38.00           | OK              | TEMP
PSU2_TEMP2-TMP       | 33.00           | OK              | TEMP