====== eRelayBlock ======

''void eRelayBlock (u16 eRelayID, u8 value)''
|eRelayID : The module's ID (port block number) (0 through 9) | 
|value : 0 through 255 |

Sets the output state of all ports in the given port block, eRelayID. value is a bit array corresponding to the
8 individual ports in the port block. If eRelayID were 1, value's bit 0 would correspond to port 10 and
value's bit 7 would correspond to port 17.

<code c>
eRelayBlock(1,7);    // Ports 10-12: ON, Ports 13-17 OFF
                     // 7 = b0000 0111

</code>

*Keep in mind the Expansion Relay Output Module's maximum on/off switching speed is 10 times a second
(10Hz).


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