How to get the data of field collections
These are the field data types and their column names:


Text - value
Entity Reference - target_id
Term Reference - tid


Combine that with field_get_items(), e.g.:

$items = field_get_items('node', $node, 'field_suppliers_value');

if ($items) {
  // Or $items[0]['target_id'], etc
  $fc = field_collection_item_load($items[0]['value']);
}


Hopefully that'll give you enough to go on.