Expose modbus exceptions as python exceptions #8
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This was referenced Jul 27, 2019
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This will be implemented in next release. |
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I'm wrestling with a particularly uncooperative modbus device and I needed to get clearer visibility into which modbus exceptions it was returning. This PR adds specific exceptions for the Slave busy and NACK exceptions. More may follow.
These exceptions inherit from ValueError so existing code which catches that will be unaffected.