User`s manual

4
II. IRC SYSTEM
The master PC or ECR can transmit programming data to the slave ECRs and collect the sales data
from the slave ECRs via channel A.
! PC as Master
using PC-IRC communication module Tensai2000 via NA-720
NA-720 is required between PC and ECR for protocol converter "RS485 to/from RS232C".
! ECR as Master : Any ECR can be a master ECR.
PC connected to channel B of master ECR, can collect the reports on master ECR and send
the program data to master ECR by PC commands.
Preparation
Before using the IRC system, the following presetting must be performed:
a) For new machines being added to the system, perform RAM test SP-9901 to erase all RAM
contents. Do not perform this operation on the machines already used as it will erase all
preset data.
b) Confirm the following three points on each ECR:
1. Each ECR is connected by the IRC line. Refer to VIII. Cable Connection (page 25).
2. ECR machine number (PGM-171)
The last two digits of the machine number used for ECR ID #, must be 01 ~ 32 out of 62 and
different for each ECR.
3. Baud rate of all ECRs [SF-89.a] (PGM-100)
SF-89 1/0 bit 1 0
a Baud rate: IRC line (ch-A) is 38400 bps 19200 bps