AD7993 keeps reading same channel

Question

Accepted Answer

Question I am having difficulty reading from different channels. I read the same channel 
 8 times. Can you give a general sequence I should follow? Answer START
 Write Address
 ACK by AD7993
 Command mode byte 0x30 (set command bits to 0011 and address pointer bits to 
 0000) On the 5th SCL rising edge of the command/pointer byte the ADC will 
 power up and convert on ch1
 ADC ACK
 Repeated Start (ensure this is not a stop condition)
 Read address (part power up and converts on ch2)
 ACK by AD7993
 MSB byte of conversion result ch1
 ACK by master
 LSB byte of conversion result ch1
 ACK by master (part powers up and converts on ch1 again)
 MSB byte of conversion result ch2
 ACK by master
 LSB byte of conversion result ch2
 NACK by master
 STOP
 
 Once the command bits are set in the command/address pointer byte the ADC 
 starts to operate in mode 2. When ever the part receives a STOP or NACK 
 condition it will no longer operate in mode 2 until the command bits are again 
 programmed to do so.

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AD7993: FAQ