I am evaluating XBee-PRO S3B RF module. I configured three modules as AP=1 mode. one is configured as Non-routing coordinator (XBee-C), the other two configured as non-routing module (XBee-E1, XBee-E2). Now I am simultaneously transmitting 40 packets from both XBee-E1 and XBee-E2 to XBee-C. after transmission, I read back the network diagnostic parameter. There is a parameter ER (Receive Error Count) which are 3 on XBee-E1, 5 on XBee-E2, and 2 on XBee-C. what is this number real meaning? The description says "Received Error Count. This count is incremented whenever a packet is received which contained integrity errors of some sort". does it mean XBee-E1/E2/C received packet contains error bit? what happen if ER is incremented? The module will retransmit?
Thanks in advance.